A man bought 220 mangoes at N5x. He sold each for 3x kobo and made...
MATHEMATICS
WAEC 2005
A man bought 220 mangoes at N5x. He sold each for 3x kobo and made a gain of N8. Find the value of x
- A. 2
- B. 5
- C. 6
- D. 10
Correct Answer: B. 5
Explanation
The cost price of the whole mangoes = N5x
The sold amount of the mangoes = 3x * 220 = N6.60x
The gain made on mangoes = N6.60x - N5x = N8.00 => N1.60x = N8 => \(x=\frac{8}{1.60}=\frac{1}{0.2}=\frac{10}{2}=5\)
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