Question

An article is sold at a gain of 15% it had been sold for ₹108 the profit would be 20% find the cp

Answer 1

p%=p*100/cp

15%=(sp-cp)*100/cp

cp=(108-cp)100/15

cp=2160-20cp/3

3cp=2160-20cp

23cp=2160

cp=2160/23

cp=93.91