PYQ Vault
EbooksTutor

Successive percentage changes (or a product of changed factors): net percent change

This type of question, asked 10 times: 17 Jul 2023 S2, 25 Jul 2023 S3, 26 Jul 2023 S4, 9 Sep 2024 S3, 10 Sep 2024 S2, 11 Sep 2024 S2, 17 Sep 2024 S1, 18 Sep 2024 S3, 19 Sep 2024 S1, 26 Sep 2024 S1. All 10 questions below, oldest first.

Try each one first, then open its answer.

  1. Question 1

    17 Jul 2023 S2

    58
    If the side of an equilateral triangle is increased by 34%, then by what percentage will its area increase?

    Tap an option to check your answer.

  2. Question 2

    25 Jul 2023 S3

    71
    In the first month, the income of Mohan increases by 30%. In the second month his income decreases by 30%. What will be percentage increase or decrease in the income after two months?

    Tap an option to check your answer.

  3. Question 3

    26 Jul 2023 S4

    64
    Ram bought a cell phone and paid 30% less than its original price. He sold it at 50% profit on the price he had paid. The percentage of profit earned by Ram on the original price was:

    Tap an option to check your answer.

  4. Question 4

    9 Sep 2024 S3

    51
    A number is first increased by 12%12\% and then increased by 23%23\%. The number, so obtained, is now decreased by 34%34\%. What is the net increase or decrease percent in the original number (nearest to an integer)?

    Tap an option to check your answer.

  5. Question 5

    10 Sep 2024 S2

    65
    Ravi's salary was increased by 50%50\%. After some time, his new salary was also increased by 50%50\%. Find his gain percentage of salary.

    Tap an option to check your answer.

  6. Question 6

    11 Sep 2024 S2

    70
    The salary of a worker is first increased by 25%, then it is decreased by 12%. The percentage change in his salary is:

    Tap an option to check your answer.

  7. Question 7

    17 Sep 2024 S1

    75
    In a company, all employees are getting equal wages. If the number of employees is increased by 20% and their wages per head are decreased by 18%, what is the percentage decrease in total wages?

    Tap an option to check your answer.

  8. Question 8

    18 Sep 2024 S3

    56
    An investor, invested ₹2,00,000 in shares. The shares rose by 18% on the first day, fell by 15% on the second day, and then fell by 3% on the third day. What is the net percentage increase or decrease in the value of the investor's shares? (Rounded up to one decimal place)

    Tap an option to check your answer.

  9. Question 9

    19 Sep 2024 S1

    67
    The cost of tomatoes per kg is increased by 300%300\%. A housewife reduces her consumption of tomatoes by 70%70\%. By what percentage does her expenditure on tomatoes increase or decrease?

    Tap an option to check your answer.

  10. Question 10

    26 Sep 2024 S1

    66
    A person first increases the price of a commodity by 8%8\% and then he announces a discount of 18%18\%. The actual discount (in%) on the original price is:

    Tap an option to check your answer.