MATHEMATICS

JAMB 2021 - Question 4

Mathematics 2021 JAMB Past Questions - Question 4: A man donates 10% of his monthly net earnings to his church. If it amounts to N4,500, what is his net monthly income?

A man donates 10% of his monthly net earnings to his church. If it amounts to N4,500, what is his net monthly income?
A:
B:
C:
D:
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Correct Answer

B

Explanation

To find the man's net monthly income, we can set up an equation using the information given.Let's assume the man's net monthly income is represented by "x" in Naira (₦).According to the information given, the man donates 10% of his net monthly income to his church, which amounts to N4,500.This can be expressed as:0.10x = N4,500To solve for x, we divide both sides of the equation by 0.10:x = N4,500 / 0.10x = N45,000Therefore, the man's net monthly income is N45,000.