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JAMB Mathematics 2015 Paper
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© africaexams.com
Question : 28
Total: 61
A man sells his new brand car for N420,000 at a gain of 15%. What did it cost him?
N410,000
N365, 217
N157, 250
N257,000
Validate
Solution:
Cost Price:
Selling price = 100 : (100 + 15)
= 100 : 115
Cost Price
= 100 ÷ 115 of selling price (i.e N420,000)
= 100 ÷ 115 × N420,000
= N365,217.4
∴ Cost Price = N365, 217
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