After getting a rise of 15%, a man's new monthly salary is N345. How much per month did he earn before the increase?
A
N330
B
N396.75
C
N300
D
N293.25
E
N360
Verified Correct Answer: C.
Step-by-Step Mathematical Solution
Let x represent his monthly salary before increase 15% of
x = 345
% profit = (100 + 15)%
= 115%
\(\frac{115}{100}\)x = 345
115x = 34500
x = N300.00
Source: Myschool Past Questions Archive (Record #32649)