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A sum of N18,100 was shared among 5 boys and 4 girls with each boy...

Mathematics
WAEC 2017

A sum of N18,100 was shared among 5 boys and 4 girls with each boy taking N20.00 more than each girl. Find a boy's share.

  • A. N1,820.00
  • B. 2,000.00
  • C. N2,020.00
  • D. N2,040.00
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Correct Answer: Option C
Explanation

Let a girl's share = x + 20

4x + 5(x + 20) = 18,100

4x + 5x + 100 = 18,100

9x + 100 = 18,100

9x = 18,000

x = \(\frac{18,000}{9}\)

x = 2,000

\(\therefore\) Each boy gets N(2,000 + 20)

 = N2,020.


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