Percentage Practice Question and Answer

Q:

Hari and Mohan contested a panchayat election. Hari got 52 percent votes and defeated Mohan by a margin of 90 votes. What was the total turnout in the election.

1487 0

  • 1
    2500
    Correct
    Wrong
  • 2
    2200
    Correct
    Wrong
  • 3
    2250
    Correct
    Wrong
  • 4
    2100
    Correct
    Wrong
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Answer : 3. "2250"

Q:

If a batsman scored 120 runs which included 9 boundaries and 3 sixes, then what percent of his total score did he make by running between the wickets?

1483 0

  • 1
    48%
    Correct
    Wrong
  • 2
    50%
    Correct
    Wrong
  • 3
    52%
    Correct
    Wrong
  • 4
    55%
    Correct
    Wrong
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Answer : 4. "55%"

Q:

If the diameter of a wire is decreased by 10% by how much per cent (approximately) will the length be increased to keep the volume constant?

1479 0

  • 1
    5%
    Correct
    Wrong
  • 2
    17 %
    Correct
    Wrong
  • 3
    20 %
    Correct
    Wrong
  • 4
    23 %
    Correct
    Wrong
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Answer : 4. "23 %"

Q:

A book seller allowed 10 % discount on printed price. He gets 30 % commission from publisher. His profit in percent will be? 

1472 0

  • 1
    20%
    Correct
    Wrong
  • 2
    25%
    Correct
    Wrong
  • 3
    $$ 28{4\over7}\% $$
    Correct
    Wrong
  • 4
    $$ 26{3\over7}\% $$
    Correct
    Wrong
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Answer : 3. "$$ 28{4\over7}\% $$"

Q:

The sum of weights of A and B is 80 kg. 50% of A's weight is $${5\over6}$$ times the weight of B. Find the difference between their weights. 

1471 0

  • 1
    20 kg
    Correct
    Wrong
  • 2
    10 kg
    Correct
    Wrong
  • 3
    25 kg
    Correct
    Wrong
  • 4
    15 kg
    Correct
    Wrong
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Answer : 1. "20 kg"
Explanation :

Let's denote the weight of A as 𝑥x kg and the weight of B as 𝑦y kg.

Given:

  1. 𝑥+𝑦=80x+y=80 (Sum of weights of A and B is 80 kg)
  2. 0.5𝑥=56𝑦0.5x=65y (50% of A's weight is 5665 times the weight of B)

We can solve these two equations to find the values of 𝑥x and 𝑦y, and then calculate the difference between their weights.

From equation 2: 0.5𝑥=56𝑦0.5x=65y Multiply both sides by 2 to get rid of the fraction: 𝑥=56𝑦×2x=65y×2 𝑥=106𝑦x=610y 𝑥=53𝑦x=35y

Now substitute this expression for 𝑥x into equation 1: 53𝑦+𝑦=8035y+y=80 83𝑦=8038y=80 Multiply both sides by 3883: 𝑦=80×38y=80×83 𝑦=30y=30

Now that we have found the weight of B, we can find the weight of A using equation 1: 𝑥+30=80x+30=80 𝑥=80−30x=80−30 𝑥=50x=50

So, the weight of A is 50 kg and the weight of B is 30 kg.

Now, let's find the difference between their weights: Difference=Weight of A−Weight of BDifference=Weight of A−Weight of B Difference=50−30Difference=50−30 Difference=20Difference=20

Therefore, the difference between their weights is 20 kg.

Q:

Two numbers are 90 % and 75 % lesser than a third number. By what % should the first number be increased so that it becomes equal to the second number? 

1465 0

  • 1
    150
    Correct
    Wrong
  • 2
    100
    Correct
    Wrong
  • 3
    250
    Correct
    Wrong
  • 4
    200
    Correct
    Wrong
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Answer : 1. "150 "

Q:

If $$ {66{2\over 3}}{ \%}$$ of 75 % of one-eighth of a certain number is 179, then $$ {33{1\over 3}}{ \%}$$ of three – fourth of that number is:

1459 0

  • 1
    537
    Correct
    Wrong
  • 2
    787.6
    Correct
    Wrong
  • 3
    859.2
    Correct
    Wrong
  • 4
    716
    Correct
    Wrong
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Answer : 4. "716"

Q:

Radha spends 40% of her salary on food, 20% on house rent, 10% on entertainment and 10% on conveyance. If her savings at the end of a month are ₹ 1500, then her salary per month (in ₹) is  

1455 1

  • 1
    ₹ 8000
    Correct
    Wrong
  • 2
    ₹ 7500
    Correct
    Wrong
  • 3
    ₹ 6000
    Correct
    Wrong
  • 4
    ₹ 10000
    Correct
    Wrong
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Answer : 2. "₹ 7500 "

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