Percentage Practice Question and Answer

Q:

The price of an article is reduced by 25% but the daily sale of the article is increased by 30%. The net effect on the daily sale receipts is

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  • 1
    increase
    Correct
    Wrong
  • 2
    decrease
    Correct
    Wrong
  • 3
    2 % increase
    Correct
    Wrong
  • 4
    2 % decrease
    Correct
    Wrong
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Answer : 2. " decrease"

Q:

If the purchase price of an article is equal to 80 percent of its selling price then there will be profit.

773 0

  • 1
    20%
    Correct
    Wrong
  • 2
    Correct
    Wrong
  • 3
    24 %
    Correct
    Wrong
  • 4
    25 %
    Correct
    Wrong
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Answer : 4. "25 %"

Q:

If the length of a rectangle is increased by 20% and its breadth is decreased by 20%, its area:

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  • 1
    Increases by 4%
    Correct
    Wrong
  • 2
    Decreases by 4%
    Correct
    Wrong
  • 3
    Decreases by 1%
    Correct
    Wrong
  • 4
    Does not change
    Correct
    Wrong
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Answer : 2. "Decreases by 4%"

Q:

In an exam, 3 marks are scored on the correct solution, but 2 marks are deducted on the wrong solution. If a student scores 75 questions and gets 75 marks, the correct answer is the number of questions.

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  • 1
    50
    Correct
    Wrong
  • 2
    35
    Correct
    Wrong
  • 3
    30
    Correct
    Wrong
  • 4
    25
    Correct
    Wrong
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Answer : 2. "35"

Q:

The sum of weights of A and B is 80 kg. 50% of A's weight is times the weight of B. Find the difference between their weights. 

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  • 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:

In an examination in which full marks were 700, A gets 20 % more than B, B gets 20 % more than C, and Cgets 15 % less than D. If A got 576 marks, then what percentage of full marks did D get? 

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  • 1
    67.22 %
    Correct
    Wrong
  • 2
    68.22 %
    Correct
    Wrong
  • 3
    65,22 %
    Correct
    Wrong
  • 4
    66.22 %
    Correct
    Wrong
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Answer : 1. "67.22 % "

Q:

The number obtained by subtracting two-third of 75% of 600 from a number is 320, what is the original number?

756 0

  • 1
    500
    Correct
    Wrong
  • 2
    300
    Correct
    Wrong
  • 3
    620
    Correct
    Wrong
  • 4
    720
    Correct
    Wrong
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Answer : 3. "620"

Q:

If the total monthly income of 16 persons is ₹ 80,800 and the income of one of them is 120% of the average income, then his income is 

742 0

  • 1
    ₹ 5,050
    Correct
    Wrong
  • 2
    ₹ 6,060
    Correct
    Wrong
  • 3
    ₹ 6,160
    Correct
    Wrong
  • 4
    ₹ 6,600
    Correct
    Wrong
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Answer : 2. "₹ 6,060 "

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