Question

# If the ratio of the cost price and selling price is $$5:6,$$ the gain per cent is:

A
20%
B
3313%
C
25%
D
30%

Solution

## The correct option is A $$20\%$$Let the C.P $$=$$ Rs. $$5x$$ and S.P $$=$$ Rs. $$6x$$Then, profit $$=6x-5x=x$$Profit $$\%=\dfrac{x}{5x}\times 100=20\%$$Thus, gain per cent is $$20\%$$.Mathematics

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