Question

if cost price of 10 greeting cards is equal to selling price of 8 greeting cards find the loss or gain percent​

Answer 1

10CP =8SP

5 CP=4SP

CP:SP

4:5

PROFIT %=(PROFIT/CP)×100

=(1/4)×100

=100/4

25%Gain Answer

Answer 2

10cp=8sp

5cp=4sp

cp :sp

4:5

profit%=profit/cp×100

=1/4×100 =25%