Question on: WAEC Mathematics - 2005
The monthly salary of a man increased from N2,700 to N3,200. Find the percentage increase
A
10%
B
15%
C
15.6%
D
18.5%
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Correct Option: D
\(\% increase = \frac{Increase}{initial\hspace{1mm} salary}\times 100\%\
Increase=N3,200 - N2,700 = N500\
Initial \hspace{1mm} salary=N2,700.00=\frac{N500}{N2,700}\times 100\% = 18.5\%\)
Increase=N3,200 - N2,700 = N500\
Initial \hspace{1mm} salary=N2,700.00=\frac{N500}{N2,700}\times 100\% = 18.5\%\)
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