The price of a shoe was decreased by 22%. If the new price is N27.3.
MATHEMATICS
WAEC 2023
The price of a shoe was decreased by 22%. If the new price is N27.3. what is the original price.
- A. N62.30
- B. N42.30
- C. N72.00
- D. N35.00
Correct Answer: D. N35.00
Explanation
Let x = original price
A decrease of 22% = (100-22)% = 78% of the original price.
78% of x = 27.30
= \(\frac{78x}{100} = 27.30\)
78x = 2730
then, x = \(\frac{2730}{78}\)
x = 35
Therefore, the original price of the shoe was N35.00.
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