Railway Recruitment Board Mathematics — Question 1696
Question
A number is first increased by 20% and then the result is decreased by 20%. What is the net change?
- 4% increase
- no change
- 4% decrease
- 2% decrease
Correct answer
C — 4% decrease
Explanation (English)
Net multiplier = 1.20 × 0.80 = 0.96, i.e. 96% of the original. Net change = 100% − 96% = 4% decrease.
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