Question

find the c.p. when S.p. = rs 12 ; gain = 20 %

Answer 1

Here is your answer
The formula is cp=(100/100-gain%) x sp
(100100−20)(12)

=(100/100−20)(12)

=(100/80)(12)

=(5/4)(12)
=(
5
4
)(
12
1
)
=
(5)(12)
(4)(1)
=
60
4
=15

Answer 2

we know that cp = sp×100/100+p%
cp =?
sp = 12
gain = 20%

cp is equal to 12× 100/ 120
10
therefore, the cp is equal to RS 10

I think it is not applicable