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Question 141

SBI Clerk 2025• Numerical Ability

The line graph shows the total number of students [ Boys and Girls] and number of girls in a school in four different years [ 2018, 2019, 2020 and 2021].

One teacher per five students in 2019. Find the total number of teachers in school in the year 2019?

  1. AOption (a)

    50

  2. BOption (b)

    60

  3. COption (c)

    5

  4. DOption (d)

    40

  5. EOption (e)

    65

View answer & explanation

Correct answer

Answer: (a)A.

50

Why this answer is correct

Common Calculation

YearNumber of GirlsNumber of Boys
2018130250 – 130 = 120
2019110250 – 110 = 140
2020130280 – 130 = 150
2021180340 – 180 = 160

 

Calculation

Given: 1 teacher per 5 students

Total students 2019 = 110 + 140 = 250

Teachers = 250 ÷ 5 = 50

Answer: 50 teachers

Question 142

SBI Clerk 2025• Numerical Ability

The line graph shows the total number of students [ Boys and Girls] and number of girls in a school in four different years [ 2018, 2019, 2020 and 2021].

Find the ratio between total number of students in 2020 and 2018 and total number of boys in 2021 and 2019?

  1. AOption (a)

    7:4

  2. BOption (b)

    8:9

  3. COption (c)

    5:3

  4. DOption (d)

    53:30

  5. EOption (e)

    6:7

View answer & explanation

Correct answer

Answer: (d)D.

53:30

Why this answer is correct

Common Calculation

YearNumber of GirlsNumber of Boys
2018130250 – 130 = 120
2019110250 – 110 = 140
2020130280 – 130 = 150
2021180340 – 180 = 160

 

Calculation

Total students 2020 + 2018 = 280 + 250 = 530

Total boys 2021 + 2019 = 160 + 140 = 300

Ratio = 530 : 300 = 53 : 30

Answer: 53 : 30

Question 143

SBI Clerk 2025• Numerical Ability

The line graph shows the total number of students [ Boys and Girls] and number of girls in a school in four different years [ 2018, 2019, 2020 and 2021].

Find the difference between total number of boys and total number of girls in all the given years?

  1. AOption (a)

    20

  2. BOption (b)

    30

  3. COption (c)

    40

  4. DOption (d)

    50

  5. EOption (e)

    60

View answer & explanation

Correct answer

Answer: (a)A.

20

Why this answer is correct

Common Calculation

YearNumber of GirlsNumber of Boys
2018130250 – 130 = 120
2019110250 – 110 = 140
2020130280 – 130 = 150
2021180340 – 180 = 160

 

Calculation

Total boys = 120 + 140 + 150 + 160 = 570

Total girls = 130 + 110 + 130 + 180 = 550

Difference = 570 − 550 = 20

Answer: 20

Question 144

SBI Clerk 2025• Numerical Ability

What will come in place of the question mark ‘?’ in the following question?

1347 + 254 + 457 – 3382 + 8745 – 5723 = ?

  1. AOption (a)

    1709

  2. BOption (b)

    1608

  3. COption (c)

    1702

  4. DOption (d)

    1698

  5. EOption (e)

    None of these

View answer & explanation

Correct answer

Answer: (d)D.

1698

Why this answer is correct

Given:

1347 + 254 + 457 – 3382 + 8745 – 5723 = ?

Concept:

Calculation:

1347 + 254 + 457 – 3382 + 8745 – 5723 = ?

⇒ ? = 2058 + 5363 – 5723

⇒ ? = 7421 – 5723

∴ ? = 1698

Question 145

SBI Clerk 2025• Numerical Ability

What will come in place of question mark (?) in the following equation?

[{(48 ÷ 6 × 3 + 8) ÷ 4 × 5 – 8} × 2 ÷ 4 × 4 + 1] – 3 = ?

  1. AOption (a)

    44

  2. BOption (b)

    56

  3. COption (c)

    62

  4. DOption (d)

    78

  5. EOption (e)

    82

View answer & explanation

Correct answer

Answer: (c)C.

62

Why this answer is correct

Follow BODMAS rule to solve this question, as per the order given below, 

Step-1: Parts of an equation enclosed in 'Brackets' must be solved first, and in the bracket, 

Step-2: Any mathematical 'Of' or 'Exponent' must be solved next, 

Step-3: Next, the parts of the equation that contain 'Division' and 'Multiplication' are calculated, 

Step-4: Last but not least, the parts of the equation that contain 'Addition' and 'Subtraction' should be calculated 

Now, we have

⇒ [{(48 ÷ 6 × 3 + 8) ÷ 4 × 5 – 8} × 2 ÷ 4 × 4 + 1] – 3 = ?

⇒ [{(8 × 3 + 8) ÷ 4 × 5 – 8} × 2 ÷ 4 × 4 + 1] – 3 = ?

⇒ [{(24 + 8) ÷ 4 × 5 – 8} × 2 ÷ 4 × 4 + 1] – 3 = ?

⇒ [{32 ÷ 4 × 5 – 8} × 2 ÷ 4 × 4 + 1] – 3 = ?

⇒ [{8 × 5 – 8} × 2 ÷ 4 × 4 + 1] – 3 = ?

⇒ [{40 – 8} × 2 ÷ 4 × 4 + 1] – 3 = ?

⇒ [32 × 2 ÷ 4 × 4 + 1] – 3 = ?

⇒ [32 × (1/2) × 4 + 1] – 3 = ?

⇒ [64 + 1] – 3 = ?

⇒ 65 – 3 = ?

∴ ? = 62

Question 146

SBI Clerk 2025• Numerical Ability

What will come in place of question mark ‘?’ in the following question?

(1333 - 339) ÷ 2 + 103 = 21 × 39 - ?

  1. AOption (a)

    126

  2. BOption (b)

    219

  3. COption (c)

    318

  4. DOption (d)

    419

  5. EOption (e)

    200

View answer & explanation

Correct answer

Answer: (b)B.

219

Why this answer is correct

Follow BODMAS rule to solve this question, as per the order given below,

Step-1- Parts of an equation enclosed in 'Brackets' must be solved first, and in the bracket,

Step-2- Any mathematical 'Of' or 'Exponent' must be solved next,

Step-3- Next, the parts of the equation that contain 'Division' and 'Multiplication' are calculated,

Step-4- Last but not least, the parts of the equation that contain 'Addition' and 'Subtraction' should be calculated.

Given expression is,

⇒ (1333 - 339) ÷ 2 + 103 = 21 × 39 - ?

⇒ 994 ÷ 2 + 103 = 21 × 39 - ?

⇒ 497 + 103 = 819 - ?

⇒ 600 = 819 - ?

⇒ ? = 819 - 600

⇒ ? = 219

Question 147

SBI Clerk 2025• Numerical Ability

What should come in place of question mark ‘?’ in the following number question?

7859 - 1109 + 335 = 20 + 785 × ?

  1. AOption (a)

    3

  2. BOption (b)

    11

  3. COption (c)

    7

  4. DOption (d)

    9

  5. EOption (e)

    5

View answer & explanation

Correct answer

Answer: (d)D.

9

Why this answer is correct

Follow BODMAS rule to solve this question, as per the order given below,

Step-1- Parts of an equation enclosed in 'Brackets' must be solved first, and in the bracket,

Step-2- Any mathematical 'Of' or 'Exponent' must be solved next,

Step-3- Next, the parts of the equation that contain 'Division' and 'Multiplication' are calculated,

Step-4- Last but not least, the parts of the equation that contain 'Addition' and 'Subtraction' should be calculated.

Given expression is,

⇒ 7859 - 1109 + 335 = 20 + 785 × ?

⇒ 8194 - 1109 = 20 + 785 × ?

⇒ 7085 = 20 + 785 × ?

⇒ 7085 - 20 = 785 × ?

⇒ 7065 = 785 × ?

⇒ ? = 7065/785

⇒ ? = 9

Question 148

SBI Clerk 2025• Numerical Ability

What should come in the place of the question mark (?) in the following question?

[(27 × 10) ÷ 30 + 10500 ÷ 500] = ? × 15

  1. AOption (a)

    1

  2. BOption (b)

    4

  3. COption (c)

    2.65

  4. DOption (d)

    0.90

  5. EOption (e)

    2

View answer & explanation

Correct answer

Answer: (e)E.

2

Why this answer is correct

Given:

[(27 × 10) ÷ 30 + 10500 ÷ 500] = ? × 15

Concept Used:

Calculation:

Suppose x will come in the place of the question mark;

[(27 × 10) ÷ 30 + 10500 ÷ 500] = x × 15

Applying BODMAS Rule;

⇒ [(270) ÷ 30 + 21] = 15x

⇒ 9 + 21 = 15x

⇒ 30 = 15x

∴ x = 2

Question 149

SBI Clerk 2025• Numerical Ability

What will come in place of question mark ‘?’ in the following question?

{(3654 + 1346) × 2} ÷ 200 = ?

  1. AOption (a)

    50

  2. BOption (b)

    100

  3. COption (c)

    45

  4. DOption (d)

    150

  5. EOption (e)

    70

View answer & explanation

Correct answer

Answer: (a)A.

50

Why this answer is correct

Follow BODMAS rule to solve this question, as per the order given below,

Step 1: Parts of an equation enclosed in 'Brackets' must be solved first, and in the bracket,

Step 2: Any mathematical 'Of' or 'Exponent' must be solved next,

Step 3: Next, the parts of the equation that contain 'Division' and 'Multiplication' are calculated,

Step 4: Last but not least, the parts of the equation that contain 'Addition' and 'Subtraction' should be calculated.

Given expression is,

⇒ {(3654 + 1346) × 2} ÷ 200 = ?

⇒ {(5000) × 2} ÷ 200 = ?

⇒ ? = 10000 ÷ 200

⇒ ? = 50

Question 150

SBI Clerk 2025• Numerical Ability

What will come in place of question mark '?' in the following question?

579 × 4 + 184 = 1388 ÷ ? + 1112

  1. AOption (a)

    10

  2. BOption (b)

    1

  3. COption (c)

    11

  4. DOption (d)

    100

  5. EOption (e)

    0.1

View answer & explanation

Correct answer

Answer: (b)B.

1

Why this answer is correct

Follow BODMAS rule to solve this question, as per the order given below,

Step-1: Parts of an equation enclosed in 'Brackets' must be solved first, and in the bracket,

Step-2: Any mathematical 'Of' or 'Exponent' must be solved next,

Step-3: Next, the parts of the equation that contain 'Division' and 'Multiplication' are calculated,

Step-4: Last but not least, the parts of the equation that contain 'Addition' and 'Subtraction' should be calculated.

Given expression is,

⇒ 579 × 4 + 184 = 1388 ÷ ? + 1112

⇒ 2316 + 184 = 1388 ÷ ? + 1112

⇒ 2500 = 1388 ÷ ? + 1112

⇒ 2500 – 1112 = 1388 ÷ ?

⇒ 1388 = 1388 ÷ ?

⇒ ? = 1

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