Multiple choice

Narendra's salary was decreased by 50% and subsequently increased by 50%. How much percent does he lose?

  1. 20 %

  2. 25 %

  3. 35 %

  4. 30 %
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Let salary be 100. Decrease by 50% = 50. Increase by 50% of 50 = 25. New salary = 50 + 25 = 75. Loss = 100 - 75 = 25%.

AI explanation

Using the net percentage change formula for an increase and decrease of the same value, the net loss percentage equals the square of the common percentage divided by 100. The calculation is 50 squared divided by 100, which equals 25.

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