Reverse percentagemediumFree question
After a 15% increase, a price is £132.25. What was the original price?
A£152.09
B£112.41
C£117.04
D£110.21
E£115.00
Worked solution
The given value already includes the change, so divide by (1 + rate) — don't subtract the percentage from it. The correct answer is £115.00. Traps to avoid: £152.09 comes from the "increased again" error; £112.41 comes from the "forward not reverse" error; £117.04 comes from the "wrong rate" error; £110.21 comes from the "wrong rate" error.
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