Question on: JAMB Mathematics - 2008
The cost of kerosine per liter increase from N60 to N85. What is the percentage rate of increase?
A
42%
B
41%
C
40%
D
25%
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Correct Option: A
N85 - N60 = N25 increase
∴percentage increase = \(\frac{25}{60}\times \frac{100}{1}\=\frac{125}{3}\=41.67%\\ =42%\)
∴percentage increase = \(\frac{25}{60}\times \frac{100}{1}\=\frac{125}{3}\=41.67%\\ =42%\)
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