Sum

A fruit-seller buys oranges at 4 for Rs.3 and sells them at 3 for Rs.4 Find his profit percent.

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#### Solution

Let number of oranges bought = 12

[**Note**: L.C.M. of 4 and 3 = 12]

∴ C.P. of oranges = Rs.`3/4xx12` = Rs. 9

and S.P. of oranges = Rs.`4/3xx12`

= Rs. 16

∴ Profit = 16 − 9

= Rs. 7

Profit %`="Profit"/"C.P."xx100`

`=7/9xx100=700/9%`

`=77 7/9%`

Concept: Concept of Discount

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