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Question 281

DMRC CRA 2020• Quantitative Aptitude

Find the HCF of 12.5, 0.5 and 1.25

  1. AOption (a)

    0.005

  2. BOption (b)

    0.05

  3. COption (c)

    0.5

  4. DOption (d)

    5

View answer & explanation

Correct answer

Answer: (a)A.

0.005

Explanation not yet available.

Question 282

DMRC CRA 2020• Quantitative Aptitude

How many kilograms of wheat costing Rs. 8/kg must be mixed with 36 kg of rice costing Rs. 5.40/kg so that 20% gain may be obtained by selling the mixture at 7.20/kg.

  1. AOption (a)

    7.67 kg

  2. BOption (b)

    9.08 kg

  3. COption (c)

    10.8 kg

  4. DOption (d)

    8.67 kg

View answer & explanation

Correct answer

Answer: (a)A.

7.67 kg

Explanation not yet available.

Question 283

DMRC CRA 2020• Quantitative Aptitude

How many arrangements can be made using all the letters of the word DAUGHTER exactly once each, so that the vowels always come together?

  1. AOption (a)

    0234

  2. BOption (b)

    3420

  3. COption (c)

    2340

  4. DOption (d)

    4320

View answer & explanation

Correct answer

Answer: (a)A.

0234

Explanation not yet available.

Question 284

DMRC CRA 2020• Quantitative Aptitude

A can complete a task in 40 days B can complete the same task in 60 days. How long will they take to complete the task together?

  1. AOption (a)

    24 days

  2. BOption (b)

    36 days

  3. COption (c)

    50 days

  4. DOption (d)

    30 days

View answer & explanation

Correct answer

Answer: (a)A.

24 days

Explanation not yet available.

Question 285

DMRC CRA 2020• Quantitative Aptitude

Find the LCM of 16, 24, 36 and 54

  1. AOption (a)

    432

  2. BOption (b)

    443

  3. COption (c)

    448

  4. DOption (d)

    423

View answer & explanation

Correct answer

Answer: (a)A.

432

Explanation not yet available.

Question 286

DMRC CRA 2020• Quantitative Aptitude

A train travels 450 km in 7 hours and another 740 km in 10 hours, what is the average speed of both the trains together?

  1. AOption (a)

    119 km/h

  2. BOption (b)

    70 km/h

  3. COption (c)

    75 km/h

  4. DOption (d)

    35 km/h

View answer & explanation

Correct answer

Answer: (a)A.

119 km/h

Explanation not yet available.

Question 287

DMRC CRA 2020• Quantitative Aptitude

What is the formula for 2sinAcosA?

  1. AOption (a)

    cos2A

  2. BOption (b)

    cosA

  3. COption (c)

    sin2A

  4. DOption (d)

    sinA

View answer & explanation

Correct answer

Answer: (a)A.

cos2A

Explanation not yet available.

Question 288

DMRC CRA 2020• Quantitative Aptitude

A godown is the form of a cuboid of dimensions 60 m × 40 m × 30 m. How many cuboidal boxes can be stored in it, if the volume of one box is 0.8 m3?

  1. AOption (a)

    90,000

  2. BOption (b)

    70,000

  3. COption (c)

    60,000

  4. DOption (d)

    80,000

View answer & explanation

Correct answer

Answer: (a)A.

90,000

Explanation not yet available.

Question 289

DMRC CRA 2020• Quantitative Aptitude

In how many ways can the letters of the word BIHAR be arranged where each such letter appears exactly once?

  1. AOption (a)

    120

  2. BOption (b)

    130

  3. COption (c)

    110

  4. DOption (d)

    100

View answer & explanation

Correct answer

Answer: (a)A.

120

Explanation not yet available.

Question 290

DMRC CRA 2020• Quantitative Aptitude

Sinu purchased an old bike for Rs. 12,000. If its cost after 2 years is Rs. 11,524.80, then the rate of depreciation is:

  1. AOption (a)

    2%

  2. BOption (b)

    3%

  3. COption (c)

    4%

  4. DOption (d)

    1%

View answer & explanation

Correct answer

Answer: (a)A.

2%

Explanation not yet available.
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