The cost of kerosene per liter increased from N60 to N85. What is the percentage rate of increase?
A
42%
B
41%
C
40%
D
25%
Verified Correct Answer: A.
Step-by-Step Mathematical Solution
N85 - N60 = N25 increase
∴percentage increase = \(\frac{25}{60}\times \frac{100}{1}\) = \(\frac{125}{3}\) = 41.67%
= 42%
Source: Myschool Past Questions Archive (Record #9262)