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%
Verified Correct Answer: D.
Step-by-Step Mathematical Solution
\(\% increase = \frac{Increase}{initial\hspace{1mm} salary}\times 100\%\)
Increase = N3,200 - N2,700 = N500
Initial \(\hspace{1mm} salary = N2,700.00 = \frac{N500}{N2,700}\times 100\% = 18.5\%\)
Source: Myschool Past Questions Archive (Record #26714)