Question

If the cost price of 90 bottles of cold drink in is equal to the selling price of 15 bottles find the gain or loss percent of the dealer

Answer 1

Answer:

CP of 90 = SP of 15

let, CP of 90 be 90$

so, CP of 1 = 1$

as we know, CP of 90 = SP of 15

so SP of 15 = 90$

and SP of 1 = 90/15 = 4$

gain% = (SP-CP)/CP *100%

= 3/1 *100%

=300%