Maths Practice Question and Answer

Q:

In a factory, the salary of each worker is increased in the ratio 22 : 25 but the number of workers is decreased by $$ 26{2\over3}\% $$. The net effect on the salary is: 

2979 0

  • 1
    $$ +11{1\over9}\% $$
    Correct
    Wrong
  • 2
    + 20%
    Correct
    Wrong
  • 3
    $$ -16{2\over3}\% $$
    Correct
    Wrong
  • 4
    -10%
    Correct
    Wrong
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Answer : 3. "$$ -16{2\over3}\% $$"

Q:

Sandeep buys an old scooter for Rs.4700 and spends Rs.800 on its repairs. If he sells to its Rajesh for Rs.5800, then his gain percent will be:

2979 0

  • 1
    $$ 5 {5\over11}%$$
    Correct
    Wrong
  • 2
    $$ 4 {4\over7}%$$
    Correct
    Wrong
  • 3
    10%
    Correct
    Wrong
  • 4
    12%
    Correct
    Wrong
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Answer : 1. "$$ 5 {5\over11}%$$"

Q: The simple interest on a certain sum at 5% per annum for 3 years and 4 years differ by Rs. 42. The sum is : 2978 1

  • 1
    Rs. 210
    Correct
    Wrong
  • 2
    Rs. 280
    Correct
    Wrong
  • 3
    Rs. 750
    Correct
    Wrong
  • 4
    Rs. 840
    Correct
    Wrong
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Answer : 4. "Rs. 840"

Q:

If three numbers are in the ratio 3:5:6 and their LCM Is 2160, then find their HCF.

2975 0

  • 1
    16
    Correct
    Wrong
  • 2
    18
    Correct
    Wrong
  • 3
    20
    Correct
    Wrong
  • 4
    22
    Correct
    Wrong
  • 5
    24
    Correct
    Wrong
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Answer : 5. "24"

Q:

What will be the difference between the compound interest and simple interest at the rate of 5% per annum on an amount of Rs 4000 at the end of 2 year?

2973 0

  • 1
    Rs 10
    Correct
    Wrong
  • 2
    Rs 20
    Correct
    Wrong
  • 3
    Rs 25
    Correct
    Wrong
  • 4
    Data inadequate
    Correct
    Wrong
  • 5
    None of these
    Correct
    Wrong
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Answer : 1. "Rs 10"

Q: Ram’s present age is one-sixth of his father’s age. If the difference between their present ages is 35 years, what is his father’s present age? 2971 0

  • 1
    32 Years
    Correct
    Wrong
  • 2
    42 Years
    Correct
    Wrong
  • 3
    52 Years
    Correct
    Wrong
  • 4
    44 Years
    Correct
    Wrong
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Answer : 2. "42 Years"

Q:

À train consists of 12 bogies, each bogie is 15 m long. The train crosses a telegraph post in 18 s. Due to some problem, two bogies were detached. The train now cresses the telegraph post in 

2971 0

  • 1
    15 s
    Correct
    Wrong
  • 2
    12 s
    Correct
    Wrong
  • 3
    18 s
    Correct
    Wrong
  • 4
    20 s
    Correct
    Wrong
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Answer : 1. "15 s "

Q:

Natasha decided to spend 45% of her salary on shopping. On completion of her shopping, she realized that she had spent only Rs.11475, which was 60% of what she had decided to spent. How much is Natasha’s salary?

2970 0

  • 1
    Rs.29600
    Correct
    Wrong
  • 2
    Rs.38800
    Correct
    Wrong
  • 3
    Rs.42500
    Correct
    Wrong
  • 4
    Can’t be determined
    Correct
    Wrong
  • 5
    None of these
    Correct
    Wrong
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Answer : 3. "Rs.42500"

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