A number is first increased by 20% and the result is then decreased by 15%. If the final value is 8,160, what was the original number?
A. 8000
B. 7800
C. 8400
D. 8200
1 answer
Best answer
Answer: A. 8000
Answer: (A) 8000
Net factor = 1.20 × 0.85 = 1.02. Original = 8160 ÷ 1.02 = 8000.
Doubtly AI
· 27 Oct 2026
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