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Question 261

RBI Assistant 2022• Numerical Ability

Direction: Read the data carefully and answer the question.

Mr. ‘A’ type Different number of Words per Day. He worked for four days. The number of words typed by him on three different days: Monday, Tuesday, and Wednesday are in the ratio 3 : 4 : 2. Also number of words typed by Mr. ‘A’ on Sunday is 30% of the total words typed in four days. The no. of words typed by Mr. ‘A’ on Wednesday is 560.

Find difference between total words type by Mr. ‘A’ on Sunday & Wednesday.

  1. AOption (a)

    540

  2. BOption (b)

    530

  3. COption (c)

    580

  4. DOption (d)

    520

  5. EOption (e)

    None of these

View answer & explanation

Correct answer

Answer: (d)D.

520

Why this answer is correct

Tabulation Solution :

DaysNumber of Words typed
Sunday1080
Monday840
Tuesday1120
Wednesday560
Total Words3600

 

 

 

 

 

∴ Required difference = 1080 – 560 = 520

Alternate Method

Let total number of word type by Mr. A in four days = x

The number of words type by Mr. A in Sunday = x × 30/100 = 0.3x

The number of words type by Mr. A in Monday = (x – 0.3x) × 3/9 = 0.7x/3

The number of words type by Mr. A in Tuesday = (x – 0.3x) × 4/9 = 2.8x/9

The number of words type by Mr. A in Wednesday = (x – 0.3x) × 2/9 = 1.4x/9

Given that,

1.4x/9 = 560

⇒ x = 560 × 9/1.4 = 3600

The number of words type by Mr. A in Sunday = 0.3x = 0.3 × 3600 = 1080

The number of words type by Mr. A in Wednesday = 560 (Given)

So, required difference = 1080 – 560 = 520

Question 262

RBI Assistant 2022• Numerical Ability

Direction: Read the data carefully and answer the question.

Mr. ‘A’ type Different number of Words per Day. He worked for four days. The number of words typed by him on three different days: Monday, Tuesday, and Wednesday are in the ratio 3 : 4 : 2. Also number of words typed by Mr. ‘A’ on Sunday is 30% of the total words typed in four days. The no. of words typed by Mr. ‘A’ on Wednesday is 560.

Find average number of words type by Mr. ‘A’ on Sunday, Wednesday & Tuesday.

  1. AOption (a)

    920

  2. BOption (b)

    890

  3. COption (c)

    880

  4. DOption (d)

    910

  5. EOption (e)

    900

View answer & explanation

Correct answer

Answer: (a)A.

920

Why this answer is correct

Tabulation Solution :

DaysNumber of Words typed
Sunday1080
Monday840
Tuesday1120
Wednesday560
Total Words3600

 

 

 

 

 

∴ Required average = (1080 + 1120 + 560)/3 = 920

Alternate Method

Let total number of word type by Mr. A in four days = x

The number of words type by Mr. A in Sunday = x × 30/100 = 0.3x

The number of words type by Mr. A in Monday = (x – 0.3x) × 3/9 = 0.7x/3

The number of words type by Mr. A in Tuesday = (x – 0.3x) × 4/9 = 2.8x/9

The number of words type by Mr. A in Wednesday = (x – 0.3x) × 2/9 = 1.4x/9

Given that,

1.4x/9 = 560

⇒ x = 560 × 9/1.4 = 3600

The number of words type by Mr. A in Sunday = 0.3x = 0.3 × 3600 = 1080

The number of words type by Mr. A in Monday = 0.7x/3 = 0.7 × 3600/3 = 840

The number of words type by Mr. A in Tuesday = 2.8x/9 = 2.8 × 3600/9 = 1120

The number of words type by Mr. A in Wednesday = 1.4x/9 = 1.4 × 3600/9 = 560

∴ required average = (1080 + 1120 + 560)/3 = 920

Question 263

RBI Assistant 2022• Numerical Ability

Direction: Read the data carefully and answer the question.

Mr. ‘A’ type Different number of Words per Day. He worked for four days. The number of words typed by him on three different days: Monday, Tuesday, and Wednesday are in the ratio 3 : 4 : 2. Also number of words typed by Mr. ‘A’ on Sunday is 30% of the total words typed in four days. The no. of words typed by Mr. ‘A’ on Wednesday is 560.

If ratio between total number of words type by Mr. ‘A’ & Mr. ‘Y’ on Monday is 2 : 3, then find total words type by Mr. ‘Y’ on Monday?

  1. AOption (a)

    1220

  2. BOption (b)

    1200

  3. COption (c)

    1260

  4. DOption (d)

    1230

  5. EOption (e)

    1280

View answer & explanation

Correct answer

Answer: (c)C.

1260

Why this answer is correct

Shortcut Trick

Ratio of words typed on Monday, Tuesday and Wednesday = 3: 4: 2

Given 2 unit = 560

∴ 3 unit  = 840 = words typed by A on Monday

Given that ratio between words typed by A and Y, on Monday = 2: 3

So, Here 2 unit = 840 = words typed by A on Monday

∴ 1 units = 840/2 = 420

∴ 3 unit = 420 × 3 = 1260 words types by Y on Monday.

Tabulation Solution :

DaysNumber of Words typed
Sunday1080
Monday840
Tuesday1120
Wednesday560
Total Words3600

 

 

 

 

 

∴ The total words type by Mr. ‘Y’ on Monday = 840 × 3/2 = 1260

Alternate Method

Let total number of word type by Mr. A in four days = x

The number of words type by Mr. A in Sunday = x × 30/100 = 0.3x

The number of words type by Mr. A in Monday = (x – 0.3x) × 3/9 = 0.7x/3

The number of words type by Mr. A in Tuesday = (x – 0.3x) × 4/9 = 2.8x/9

The number of words type by Mr. A in Wednesday = (x – 0.3x) × 2/9 = 1.4x/9

Given that,

1.4x/9 = 560

⇒ x = 560 × 9/1.4 = 3600

The number of words type by Mr. A in Sunday = 0.3x = 0.3 × 3600 = 1080

The number of words type by Mr. A in Monday = 0.7x/3 = 0.7 × 3600/3 = 840

The number of words type by Mr. A in Tuesday = 2.8x/9 = 2.8 × 3600/9 = 1120

The number of words type by Mr. A in Wednesday = 1.4x/9 = 1.4 × 3600/9 = 560

∴ The total words type by Mr. ‘Y’ on Monday = 840 × 3/2 = 1260

Question 264

RBI Assistant 2022• Numerical Ability

Direction: Read the data carefully and answer the question.

Mr. ‘A’ type Different number of Words per Day. He worked for four days. The number of words typed by him on three different days: Monday, Tuesday, and Wednesday are in the ratio 3 : 4 : 2. Also number of words typed by Mr. ‘A’ on Sunday is 30% of the total words typed in four days. The no. of words typed by Mr. ‘A’ on Wednesday is 560.

Find ratio between total words type by Mr. ‘A’ on Sunday to total words typed by Mr. ‘X’ on same day, if total words typed by Mr. ‘X’ on Sunday is 25% less than total words type by Mr. ‘A’ on Tuesday?

  1. AOption (a)

    9 : 8

  2. BOption (b)

    9 : 7

  3. COption (c)

    1 : 1

  4. DOption (d)

    3 : 7

  5. EOption (e)

    1 : 3

View answer & explanation

Correct answer

Answer: (b)B.

9 : 7

Why this answer is correct

Tabulation Solution :

DaysNumber of Words typed
Sunday1080
Monday840
Tuesday1120
Wednesday560
Total Words3600

 

 

 

 

 

∴  Required ratio = 1080 : 840 = 9 : 7

Alternate Method

Let total number of word type by Mr. A in four days = x

The number of words type by Mr. A in Sunday = x × 30/100 = 0.3x

The number of words type by Mr. A in Monday = (x – 0.3x) × 3/9 = 0.7x/3

The number of words type by Mr. A in Tuesday = (x – 0.3x) × 4/9 = 2.8x/9

The number of words type by Mr. A in Wednesday = (x – 0.3x) × 2/9 = 1.4x/9

Given that,

1.4x/9 = 560

⇒ x = 560 × 9/1.4 = 3600

The number of words type by Mr. A in Sunday = 0.3x = 0.3 × 3600 = 1080

The number of words type by Mr. A in Monday = 0.7x/3 = 0.7 × 3600/3 = 840

The number of words type by Mr. A in Tuesday = 2.8x/9 = 2.8 × 3600/9 = 1120

The number of words type by Mr. A in Wednesday = 1.4x/9 = 1.4 × 3600/9 = 560

The total words typed by Mr. ‘X’ on Sunday = 1120 × 75/100 = 840

So, required ratio = 1080 : 840 = 9 : 7

Question 265

RBI Assistant 2022• Numerical Ability

Direction: Read the data carefully and answer the question.

Mr. ‘A’ type Different number of Words per Day. He worked for four days. The number of words typed by him on three different days: Monday, Tuesday, and Wednesday are in the ratio 3 : 4 : 2. Also number of words typed by Mr. ‘A’ on Sunday is 30% of the total words typed in four days. The no. of words typed by Mr. ‘A’ on Wednesday is 560.

If total words typed by Mr. ‘Z’ in four days is 200% more than total words type by Mr. ‘A’ on Monday, then find total words typed by Mr. ‘Z’ is what percent less than total words type by Mr. ‘A’ ?

  1. AOption (a)

    35%

  2. BOption (b)

    30%

  3. COption (c)

    40%

  4. DOption (d)

    20%

  5. EOption (e)

    25%

View answer & explanation

Correct answer

Answer: (b)B.

30%

Why this answer is correct

Tabulation Solution :

DaysNumber of Words typed
Sunday1080
Monday840
Tuesday1120
Wednesday560
Total Words3600

 

 

 

 

 

∴ Required % = (3600 – 2520)/3600 × 100 = 30%

Alternate Method

Let total number of word type by Mr. A in four days = x

The number of words type by Mr. A in Sunday = x × 30/100 = 0.3x

The number of words type by Mr. A in Monday = (x – 0.3x) × 3/9 = 0.7x/3

The number of words type by Mr. A in Tuesday = (x – 0.3x) × 4/9 = 2.8x/9

The number of words type by Mr. A in Wednesday = (x – 0.3x) × 2/9 = 1.4x/9

Given that,

1.4x/9 = 560

⇒ x = 560 × 9/1.4 = 3600

The number of words type by Mr. A in Sunday = 0.3x = 0.3 × 3600 = 1080

The number of words type by Mr. A in Monday = 0.7x/3 = 0.7 × 3600/3 = 840

The number of words type by Mr. A in Tuesday = 2.8x/9 = 2.8 × 3600/9 = 1120

The number of words type by Mr. A in Wednesday = 1.4x/9 = 1.4 × 3600/9 = 560

The total words typed by Mr. ‘Z’ = 840 × 3 = 2520

So, required % = (3600 – 2520)/3600 × 100 = 30%

Question 266

RBI Assistant 2022• Reasoning Ability

Directions: Read the information carefully and answer the questions that follow.

There are eight people P, Q, R, S, T, U, V, and W who lives in an eight-floor apartment but not necessarily in the same order. The lowermost floor is numbered 1, the floor immediately above 1 is numbered 2, and so on. The number of people living between Q and U is the same as the number of people between U and P. Q lives below U but not immediately. Only one person lives between R and P who lives immediately below T. V lives on the odd numbered floor but not on the lowermost floor. Only two person lives between R and S. S lives on the odd-numbered floor below the sixth floor.

Who Lives on fifth floor?

  1. AOption (a)

    P

  2. BOption (b)

    Q

  3. COption (c)

    R

  4. DOption (d)

    S

  5. EOption (e)

    T

View answer & explanation

Correct answer

Answer: (d)D.

S

Why this answer is correct

Eight people P,Q,R,S,T,U,V, and W

1)  Only two-person lives between R and S.

  1. S lives on an odd-numbered floor below the sixth floor. 

3) Only one person lives between R and P who lives immediately below T. 

4)  V lives on an odd-numbered floor but not on the lowermost floor. 

Case ICase IICase III
Floor no.PeopleFloor no.PeopleFloor no.People
8R88
7T7V7V
6P66R
5S5S5T
44P4P
3V3T3S
22R2
111

 

5) The number of people living between Q and U is the same as the number of people between U and P. Q lives below U but not immediately.

  1. Q lives below U but not immediately.

  2. Therefore Case II and Case III are invalid.

So, the final arrangement is,

Case I
Floor no.People
8R
7T
6P
5S
4U
3V
2Q
1W

 

Hence, S lives on the fifth floor.

Question 267

RBI Assistant 2022• Reasoning Ability

Directions: Read the information carefully and answer the questions that follow.

There are eight people P, Q, R, S, T, U, V, and W who lives in an eight-floor apartment but not necessarily in the same order. The lowermost floor is numbered 1, the floor immediately above 1 is numbered 2, and so on. The number of people living between Q and U is the same as the number of people between U and P. Q lives below U but not immediately. Only one person lives between R and P who lives immediately below T. V lives on the odd numbered floor but not on the lowermost floor. Only two person lives between R and S. S lives on the odd-numbered floor below the sixth floor.

How many person lives between P and W?

  1. AOption (a)

    2

  2. BOption (b)

    3

  3. COption (c)

    4

  4. DOption (d)

    5

  5. EOption (e)

    0

View answer & explanation

Correct answer

Answer: (c)C.

4

Why this answer is correct

Eight people P,Q,R,S,T,U,V, and W

1)  Only two-person lives between R and S.

  1. S lives on an odd-numbered floor below the sixth floor. 

3) Only one person lives between R and P who lives immediately below T. 

4)  V lives on an odd-numbered floor but not on the lowermost floor. 

Case ICase IICase III
Floor no.PeopleFloor no.PeopleFloor no.People
8R88
7T7V7V
6P66R
5S5S5T
44P4P
3V3T3S
22R2
111

 

5) The number of people living between Q and U is the same as the number of people between U and P. Q lives below U but not immediately.

  1. Q lives below U but not immediately.

  2. Therefore Case II and Case III are invalid.

So, the final arrangement is,

Case I
Floor no.People
8R
7T
6P
5S
4U
3V
2Q
1W

 

Therefore, 4 people live between P and W.

Hence, the correct answer is 4.

Question 268

RBI Assistant 2022• Reasoning Ability

Directions: Read the information carefully and answer the questions that follow.

There are eight people P, Q, R, S, T, U, V, and W who lives in an eight-floor apartment but not necessarily in the same order. The lowermost floor is numbered 1, the floor immediately above 1 is numbered 2, and so on. The number of people living between Q and U is the same as the number of people between U and P. Q lives below U but not immediately. Only one person lives between R and P who lives immediately below T. V lives on the odd numbered floor but not on the lowermost floor. Only two person lives between R and S. S lives on the odd-numbered floor below the sixth floor.

Who lives on the lowermost floor?

  1. AOption (a)

    W

  2. BOption (b)

    P

  3. COption (c)

    Q

  4. DOption (d)

    R

  5. EOption (e)

    S

View answer & explanation

Correct answer

Answer: (a)A.

W

Why this answer is correct

Eight people P,Q,R,S,T,U,V, and W

1)  Only two-person lives between R and S.

  1. S lives on an odd-numbered floor below the sixth floor. 

3) Only one person lives between R and P who lives immediately below T. 

4)  V lives on an odd-numbered floor but not on the lowermost floor. 

Case ICase IICase III
Floor no.PeopleFloor no.PeopleFloor no.People
8R88
7T7V7V
6P66R
5S5S5T
44P4P
3V3T3S
22R2
111

 

5) The number of people living between Q and U is the same as the number of people between U and P. Q lives below U but not immediately.

  1. Q lives below U but not immediately.

  2. Therefore Case II and Case III are invalid.

So, the final arrangement is,

Case I
Floor no.People
8R
7T
6P
5S
4U
3V
2Q
1W

 

Hence, W lives on the lowermost floor.

Question 269

RBI Assistant 2022• Reasoning Ability

Directions: Read the information carefully and answer the questions that follow.

There are eight people P, Q, R, S, T, U, V, and W who lives in an eight-floor apartment but not necessarily in the same order. The lowermost floor is numbered 1, the floor immediately above 1 is numbered 2, and so on. The number of people living between Q and U is the same as the number of people between U and P. Q lives below U but not immediately. Only one person lives between R and P who lives immediately below T. V lives on the odd numbered floor but not on the lowermost floor. Only two person lives between R and S. S lives on the odd-numbered floor below the sixth floor.

If all the persons are arranged alphabetically from bottom to top then how many persons remains on same floor?

  1. AOption (a)

    One

  2. BOption (b)

    Two

  3. COption (c)

    Three

  4. DOption (d)

    Four

  5. EOption (e)

    None

View answer & explanation

Correct answer

Answer: (a)A.

One

Why this answer is correct

Eight people P,Q,R,S,T,U,V, and W

1)  Only two-person lives between R and S.

  1. S lives on an odd-numbered floor below the sixth floor. 

3) Only one person lives between R and P who lives immediately below T. 

4)  V lives on an odd-numbered floor but not on the lowermost floor. 

Case ICase IICase III
Floor no.PeopleFloor no.PeopleFloor no.People
8R88
7T7V7V
6P66R
5S5S5T
44P4P
3V3T3S
22R2
111

 

5) The number of people living between Q and U is the same as the number of people between U and P. Q lives below U but not immediately.

  1. Q lives below U but not immediately.

  2. Therefore Case II and Case III are invalid.

So, the final arrangement is,

Case I
Floor no.People
8R
7T
6P
5S
4U
3V
2Q
1W

After rearrangement in alphabetical order from bottom to top,

Case I
Floor no.People
8RW
7TV
6PU
5ST
4US
3VR
2QQ
1WP

Hence, the correct answer is One.

Question 270

RBI Assistant 2022• Reasoning Ability

Directions: Read the information carefully and answer the questions that follow.

There are eight people P, Q, R, S, T, U, V, and W who lives in an eight-floor apartment but not necessarily in the same order. The lowermost floor is numbered 1, the floor immediately above 1 is numbered 2, and so on. The number of people living between Q and U is the same as the number of people between U and P. Q lives below U but not immediately. Only one person lives between R and P who lives immediately below T. V lives on the odd numbered floor but not on the lowermost floor. Only two person lives between R and S. S lives on the odd-numbered floor below the sixth floor.

Four of the following five are alike in a certain way based on their arrangement find the one which does not belong to that group?

  1. AOption (a)

    Q

  2. BOption (b)

    U

  3. COption (c)

    P

  4. DOption (d)

    T

  5. EOption (e)

    R

View answer & explanation

Correct answer

Answer: (d)D.

T

Why this answer is correct

Eight people P,Q,R,S,T,U,V, and W

1)  Only two-person lives between R and S.

  1. S lives on an odd-numbered floor below the sixth floor. 

3) Only one person lives between R and P who lives immediately below T. 

4)  V lives on an odd-numbered floor but not on the lowermost floor. 

Case ICase IICase III
Floor no.PeopleFloor no.PeopleFloor no.People
8R88
7T7V7V
6P66R
5S5S5T
44P4P
3V3T3S
22R2
111

 

5) The number of people living between Q and U is the same as the number of people between U and P. Q lives below U but not immediately.

  1. Q lives below U but not immediately.

  2. Therefore Case II and Case III are invalid.

So, the final arrangement is,

Case I
Floor no.People
8R
7T
6P
5S
4U
3V
2Q
1W

Except T, all lives on the even number floor.

Hence, the correct answer is T.

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