Profit and Loss Q.3

3Romit sold his old TV and earned a profit of 10%. If he could have managed to sell it for `8100 more, then his profit would have been be 37%. Find the price at which he bought the TV?

Option : A
Explanation : 1st profit = 10%
If Romit sells TV for `8100 more, then profit = 37%
S.P. = (100 + Profit%)% of C.P.
∴ SP1 + 8100 = SP2
∴ (110)% C.P. + 8100 = (137)% C.P.
∴ 27% of C.P. = 8100
∴ C.P. = (8100 X 100)/27 = Rs 30000

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