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02 Apr 2020 : Profit & Loss

A Chinese bike is is sold at a certain price. By selling it at two third of that price one loses 10%.
Find the gain
percent at original price.

OPtion

1) 20%
2) 65%
3) 35%
4) 45%
5) 50%
6) 42%
7) 25%
8) 49%
9) 27%
10) None of these

Solution

Let the original SP be S
and CP be C

SP at 2/3rd price = (2/3)S
Loss =>
[( C - 2/3)S] x 100 / C
= 10
=> (C - (2/3)S ) x 100 = 10C
=> 200S/3 = 90C
=> S = 27C/20

Gain at original price =
=> (27C/20 - C) x100 /C
= > 7*100/20
=> 35%

Correct Option: 3 Best Solution (0)