Practice Question and Answer

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Answer : 4. "20 : 19"

Q:

The population of a city in the year 2020 was 2,00,000. The rate of growth of population is 8% per annum. Find the population of that city in the year 2022.

1098 0

  • 1
    2,29,484
    Correct
    Wrong
  • 2
    2,33,280
    Correct
    Wrong
  • 3
    2,21,785
    Correct
    Wrong
  • 4
    2,12,890
    Correct
    Wrong
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Answer : 2. "2,33,280"

Q:

Two pipes, D and E, can fill a cistern in 26 and 78 hours, respectively, while working alone. If the two pipes are opened together, the time taken to fill the cistern is:

1260 0

  • 1
    $$18{1\over 4}$$
    Correct
    Wrong
  • 2
    $$19{1\over }$$
    Correct
    Wrong
  • 3
    $$18{1\over 3}$$
    Correct
    Wrong
  • 4
    $$19{19\over 4}$$
    Correct
    Wrong
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Answer : 2. "$$19{1\over }$$"

Q:

If the height and the radius of the base of a cone are both doubled, the volume of the cone becomes _______ of its previous volume.

1040 0

  • 1
    4 times
    Correct
    Wrong
  • 2
    8 times
    Correct
    Wrong
  • 3
    3 times
    Correct
    Wrong
  • 4
    6 times
    Correct
    Wrong
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Answer : 2. "8 times"

Q:

A man bought a chair for ₹580. At what price should he sell the chair so as to gain 25%?

1595 0

  • 1
    ₹1,080
    Correct
    Wrong
  • 2
    ₹725
    Correct
    Wrong
  • 3
    ₹590
    Correct
    Wrong
  • 4
    ₹820
    Correct
    Wrong
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Answer : 2. "₹725 "

Q:

Find the LCM of the fractions $${2\over 5}$$, $${3\over 7}$$ and $${4\over 9}$$

981 0

  • 1
    12
    Correct
    Wrong
  • 2
    24
    Correct
    Wrong
  • 3
    36
    Correct
    Wrong
  • 4
    35
    Correct
    Wrong
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Answer : 1. "12 "

Q:

If A = 1300 and B = 1450, then B is approximately what percentage more than A?

1940 0

  • 1
    13.46%
    Correct
    Wrong
  • 2
    9.86%
    Correct
    Wrong
  • 3
    7.41%
    Correct
    Wrong
  • 4
    11.54%
    Correct
    Wrong
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Answer : 4. "11.54%"

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