The marked price of a radio is 20% more than its cost price. If a discount of 10% is given on the marked price, the gain per cent is:
A. 15 B. 12 C. 10 D. 8 Answer: Option DShow Answer
Solution(By Apex Team)
Let CP = 100
Then, MP = 100 + 20% of 100 = 120
Now, SP = 120 – 10% of 120 = 108
Gain = 108 – 100 = 8
%Gain $\Large=\frac{8 \times 100}{100}$ = 8%
Short-cut
100(CP) == 20%(up) ⇒ 120(MP) == 10%(disc.) ⇒ 108
% gain = 8%
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