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WAEC Mathematics 2017 Paper

Question : 33

Total: 49

\;\frac{1}{2}

Solution:

P = $\;\frac{100l}{RT} = \;\frac{100\;\times\;500}{5\;\times\;2.5} = \;\frac{50,000}{12.5}$

= 4,000

Annual interest is $\;\frac{500}{5}$ = 100

for 6 year = 4,000 + 100 + 100 + 100 + 100 + 100 + 100

= N 4,600

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