Question

By selling an article their is a loss of 2.5% .by selling it at rupee 6 their is a gain of 5% find the cost price of the article

Answer 1

the answer is 5.71 rupees

SP=(100+gain)/100×CP

let the CP be y

.

.

.

at a gain of 5%

SP=(100+5)/100 ×y

6=(105/100)×y

y=(6×100)/105

y= 5.71 rupees

verification:

SP-CP is gain

6-5.71=0.29

Gain %=(gain/CP)×100

Gain%=(0.29/5.71)×100

Gain%=5.07 approx 5%(as given in the question)