Percentage Practice Question and Answer

  • Show AnswerHide Answer
  • Workspace

Answer : 4. "6200 "

Q:

Peter bought an item at 20% discount on its original price. He sold it with 40% increase on the price he bought it. The new sale price is greater than the original price (in percent) by: 

1447 0

  • 1
    10
    Correct
    Wrong
  • 2
    8
    Correct
    Wrong
  • 3
    7.5
    Correct
    Wrong
  • 4
    12
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. "12"

Q:

A man gives 20% of his money to his eldest son, 30% of remaining he gives to his younger son. 10% of the remaining he gives in a school for poor boys still he has Rs.100.80. Find his total sum. 

1446 0

  • 1
    Rs.800
    Correct
    Wrong
  • 2
    Rs.600
    Correct
    Wrong
  • 3
    Rs.400
    Correct
    Wrong
  • 4
    Rs.200
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. "Rs.200"

Q:

The price of sugar increases by 15%. By what percentage should the consumption of sugar be decreased so that the expenditure on the purchase of sugar remains the same? [Give your answer correct to 2 decimal places.]

1445 0

  • 1
    11.11%
    Correct
    Wrong
  • 2
    12.5%
    Correct
    Wrong
  • 3
    14.16%
    Correct
    Wrong
  • 4
    13.04%
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. "13.04%"
Explanation :

To solve this problem, let's denote:

  • Initial price of sugar = P
  • Initial quantity consumed = Q
  • Initial expenditure = PQ

After the price increases by 15%, the new price becomes 1.15P.

To keep the expenditure constant, the new quantity consumed (let's call it Q') can be calculated using the formula:

New expenditure = New price × New quantity

Setting the new expenditure equal to the initial expenditure:

PQ = (1.15P) * Q'

Now, solve for Q':

Q' = PQ / (1.15P)

Simplify:

Q' = Q / 1.15

Now, let's find the percentage decrease in consumption:

Percentage decrease = [(Q - Q') / Q] * 100

Substituting the value of Q':

Percentage decrease = [(Q - (Q / 1.15)) / Q] * 100

Percentage decrease = [(Q * (1 - 1/1.15)) / Q] * 100

Percentage decrease ≈ [(1 - 0.8696) * 100] ≈ 13.04%

Therefore, the consumption of sugar should be decreased by approximately 13.04% to keep the expenditure on the purchase of sugar the same after a 15% increase in price.

Q:

Aman's expenses are 30% more than Vimal's expenses and Vimal's expenses are 10% less than Raman's expenses. If the sum of the expenditure of all three is Rs. 6,447, then what is the Expenditure of Aman?

1440 0

  • 1
    Rs. 2200
    Correct
    Wrong
  • 2
    Rs. 2457
    Correct
    Wrong
  • 3
    Rs.1890
    Correct
    Wrong
  • 4
    Rs.2100
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "Rs. 2457"

Q:

Mr. Ankit invests 14% of his monthly income every month i.e. Rs.1,750 in shares, 8% in Insurance policies and 7% in fixed deposits. What is the total annual amount invested by him?

1440 0

  • 1
    Rs. 3275
    Correct
    Wrong
  • 2
    Rs. 3450
    Correct
    Wrong
  • 3
    Rs. 3625
    Correct
    Wrong
  • 4
    Rs. 3800
    Correct
    Wrong
  • 5
    None of these
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 5. "None of these"

Q:

If there is a 25 percent reduction in the price of rice, a person can buy 10 kg more rice for Rs 600. The reduced price per kg of rice is.

1437 0

  • 1
    Rs. 30
    Correct
    Wrong
  • 2
    Rs. 25
    Correct
    Wrong
  • 3
    Rs. 20
    Correct
    Wrong
  • 4
    Rs. 15
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. "Rs. 15"

Q:

Two numbers are respectively 20% and 50% of a third number. What percent is the first number of the second?

1437 0

  • 1
    30%
    Correct
    Wrong
  • 2
    40%
    Correct
    Wrong
  • 3
    10%
    Correct
    Wrong
  • 4
    20%
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "40%"

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully