Question

A store keeper sells book for 15 percent gain and the had he sells it for more 18 and gains 18 percent of gain . what is the cp​

Answer 1

Answer:

Let the cost price of book be x.

sp of book at 15% gain =

= {100+15)/100×(X)

= 23x/20

sp of book at 18% gain =

= {(100+18)/100 × (x)

= 59x/50

59x/50 - 23x/20 = 18

3x/100 = 18

3x = 1800

× =600

cp =600.

Answer 2

177% 15%

18%=177%. hey your answer is

= 177%