Aptitude Practice Question and Answer

Q:

The product of two numbers is 24 times the difference of these two numbers. If the sum of these two numbers is 14. Find the larger number?

1321 0

  • 1
    9
    Correct
    Wrong
  • 2
    11
    Correct
    Wrong
  • 3
    7
    Correct
    Wrong
  • 4
    8
    Correct
    Wrong
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Answer : 4. " 8"

Q:

Two positive numbers differ by 1280. When the greater number is divided by the smaller number, the quotient is 7 and the remainder is 50. The greater number is:

1320 0

  • 1
    1558
    Correct
    Wrong
  • 2
    1458
    Correct
    Wrong
  • 3
    1585
    Correct
    Wrong
  • 4
    1485
    Correct
    Wrong
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Answer : 4. "1485"
Explanation :

Given :- Two positive numbers differ by 1280 

When the greater number is divided by the smaller number The quotient is 7 and the remainder is 50 

Concept :- Dividend = Quotient × divisor + remainder 

Calculation :- Let greater number = a and Smaller number = b From question, ⇒ a - b = 1280 ....(1) Again from question, ⇒ a = 7b + 50 ....(2) 

Put the value of a from equation (2) into equation (1) ⇒ 7b + 50 - b = 1280 ⇒ 6b = 1280 - 50 ⇒ 6b = 1230 ⇒ b = (1230/6) ⇒ b = 205 

Put the value of b in equation (1) ⇒ a - 205 = 1280 ⇒ a = 1280 + 205 ⇒ a = 1485 ⇒ Greater number = 1485 ∴ Greater number is 1485

Q:

The ratio of ages of Jai and Joy is 5:2. The sum of their ages is 63. After 9 years what will be the ratio of their ages?

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  • 1
    5:2
    Correct
    Wrong
  • 2
    2:1
    Correct
    Wrong
  • 3
    3:2
    Correct
    Wrong
  • 4
    4:3
    Correct
    Wrong
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Answer : 2. "2:1"

Q:

A can do 50% of a work in 16 days, B can do 1/4 of the same work in 24 days. In how many days will they complete 3/4th of the work working together?

1319 0

  • 1
    24
    Correct
    Wrong
  • 2
    19
    Correct
    Wrong
  • 3
    21
    Correct
    Wrong
  • 4
    18
    Correct
    Wrong
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Answer : 4. "18"

Q:

The sum of ages of mother and son is 47 years. Before 10 years, the product of their ages is 50. The difference between the ages of mother and a son is –

1318 0

  • 1
    25 years
    Correct
    Wrong
  • 2
    23 years
    Correct
    Wrong
  • 3
    11 years
    Correct
    Wrong
  • 4
    9 years
    Correct
    Wrong
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Answer : 2. "23 years"

Q:

The areas of the three adjacent faces of a cuboid are 32 cm2, 24 cm2 and 48cm2. What is the volume of the cuboid?

1318 0

  • 1
    288 cm3
    Correct
    Wrong
  • 2
    256 cm3
    Correct
    Wrong
  • 3
    128 cm3
    Correct
    Wrong
  • 4
    192 cm3
    Correct
    Wrong
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Answer : 4. "192 cm3"

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