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Question 231

Delhi Forest Guard 2021• Arithmetical and Numerical Ability

A person buys three bicycles at the rate of Rs. 4000 per bicycle. He sells first bicycle at a profit of 30 percent, sells second bicycle at a loss of 20 percent and sells third bicycle at a loss of 10 percent. What is the total profit percent in the whole transaction ?

  1. AOption (a)

    0 percent

  2. BOption (b)

    20 percent

  3. COption (c)

    16.66 percent

  4. DOption (d)

    13.33 percent

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Correct answer

Answer: (a)A.

0 percent

Explanation not yet available.

Question 232

Delhi Forest Guard 2021• Arithmetical and Numerical Ability

Which of the following fraction is/are greater than 3/5 but less than 7/8 ?

I. 4/5

II. 3/4

  1. AOption (a)

    Only I

  2. BOption (b)

    Neither I nor II

  3. COption (c)

    Only II

  4. DOption (d)

    Both I and II

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Correct answer

Answer: (a)A.

Only I

Explanation not yet available.

Question 233

Delhi Forest Guard 2021• Arithmetical and Numerical Ability

A man loses 10 percent on selling 80 shirts for Rs. 72. What should be the selling price of 80 shirts to earn a profit of 30 percent ?

  1. AOption (a)

    Rs. 112

  2. BOption (b)

    Rs. 100

  3. COption (c)

    Rs. 104

  4. DOption (d)

    Rs. 105

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Correct answer

Answer: (a)A.

Rs. 112

Explanation not yet available.

Question 234

Delhi Forest Guard 2021• Arithmetical and Numerical Ability

The bar graph given below shows the number of rectangles drawn by five students.

What is the average number of rectangles drawn by S2, S5, and S3?

  1. AOption (a)

    26.5

  2. BOption (b)

    20

  3. COption (c)

    25

  4. DOption (d)

    23.5

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Correct answer

Answer: (a)A.

26.5

Explanation not yet available.

Question 235

Delhi Forest Guard 2021• Arithmetical and Numerical Ability

The perimeter of base of a right circular cone is 396 cm. If the height of the cone is 84 cm, then what is the total surface area of the cone ?

  1. AOption (a)

    29852 cm2

  2. BOption (b)

    35428 cm2

  3. COption (c)

    33264 cm2

  4. DOption (d)

    31624 cm2

View answer & explanation

Correct answer

Answer: (a)A.

29852 cm2

Explanation not yet available.

Question 236

Delhi Forest Guard 2021• Arithmetical and Numerical Ability

The income of R, S and T are in the ratio of 4 : 2 : 3 respectively and their expenses are in the ratio of 2 : 1 : 3 respectively. If R saves Rs. 12000 out of an income of Rs. 20000, then what will be the savings of S ?

  1. AOption (a)

    Rs. 2000

  2. BOption (b)

    Rs. 4000

  3. COption (c)

    Rs. 8000

  4. DOption (d)

    Rs. 6000

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Correct answer

Answer: (a)A.

Rs. 2000

Explanation not yet available.

Question 237

Delhi Forest Guard 2021• Arithmetical and Numerical Ability

Marks of two candidates R and S are in the ratio of 12 : 13. If the marks of R are 240, then what will be the marks of S ?

  1. AOption (a)

    220

  2. BOption (b)

    280

  3. COption (c)

    200

  4. DOption (d)

    260

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Correct answer

Answer: (a)A.

220

Explanation not yet available.

Question 238

Delhi Forest Guard 2021• Arithmetical and Numerical Ability

Outer radius of a circular path is 35 cm. Inner radius of the same path is 21 cm. What is the area of this circular path ?

  1. AOption (a)

    2085 cm2

  2. BOption (b)

    2464 cm2

  3. COption (c)

    3246 cm2

  4. DOption (d)

    2535 cm2

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Correct answer

Answer: (a)A.

2085 cm2

Explanation not yet available.

Question 239

Delhi Forest Guard 2021• Arithmetical and Numerical Ability

A 480 metres long train is running at the speed of 36 km/hr. If it crosses a bridge in 64 seconds, then what is the length of the bridge ?

  1. AOption (a)

    240 metres

  2. BOption (b)

    320 metres

  3. COption (c)

    160 metres

  4. DOption (d)

    140 metres

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Correct answer

Answer: (a)A.

240 metres

Explanation not yet available.

Question 240

Delhi Forest Guard 2021• Arithmetical and Numerical Ability

 X, Y and Z can complete a work alone in 24, 36 and 18 days respectively. In how many days can X, Y and Z together complete 1/2 of the same work ?

  1. AOption (a)

    10 days

  2. BOption (b)

    6 days

  3. COption (c)

    4 days

  4. DOption (d)

    8 days

View answer & explanation

Correct answer

Answer: (a)A.

10 days

Explanation not yet available.