Question

The cp of 10 books is same as the sp of 8 books find the gain percent.​

Answer 1

Answer:

=10C.P=8S.P

=10C.P=8S.P=ratioofC.P:S.P

=10C.P=8S.P=ratioofC.P:S.P=C.P:S.P

=10C.P=8S.P=ratioofC.P:S.P=C.P:S.P=10:8

=10C.P=8S.P=ratioofC.P:S.P=C.P:S.P=10:8=5:4

=10C.P=8S.P=ratioofC.P:S.P=C.P:S.P=10:8=5:4gain%=

=10C.P=8S.P=ratioofC.P:S.P=C.P:S.P=10:8=5:4gain%= 5

=10C.P=8S.P=ratioofC.P:S.P=C.P:S.P=10:8=5:4gain%= 5(5−4)

=10C.P=8S.P=ratioofC.P:S.P=C.P:S.P=10:8=5:4gain%= 5(5−4)

=10C.P=8S.P=ratioofC.P:S.P=C.P:S.P=10:8=5:4gain%= 5(5−4) ×100

=10C.P=8S.P=ratioofC.P:S.P=C.P:S.P=10:8=5:4gain%= 5(5−4) ×100=

=10C.P=8S.P=ratioofC.P:S.P=C.P:S.P=10:8=5:4gain%= 5(5−4) ×100= 5

=10C.P=8S.P=ratioofC.P:S.P=C.P:S.P=10:8=5:4gain%= 5(5−4) ×100= 51

=10C.P=8S.P=ratioofC.P:S.P=C.P:S.P=10:8=5:4gain%= 5(5−4) ×100= 51

=10C.P=8S.P=ratioofC.P:S.P=C.P:S.P=10:8=5:4gain%= 5(5−4) ×100= 51 ×100

=10C.P=8S.P=ratioofC.P:S.P=C.P:S.P=10:8=5:4gain%= 5(5−4) ×100= 51 ×100=20%

=10C.P=8S.P=ratioofC.P:S.P=C.P:S.P=10:8=5:4gain%= 5(5−4) ×100= 51 ×100=20%Hence,

=10C.P=8S.P=ratioofC.P:S.P=C.P:S.P=10:8=5:4gain%= 5(5−4) ×100= 51 ×100=20%Hence,gain%=20%

I hope it is helpful for you

Answer 2

Answer:

20%

Step-by-step explanation:

Let the cost price of 10 books be 100

so SP of 8 books =100

so CP of 1 book=100/10=10

and SP of 1 book =100/8=25/2

CP of 8 books=100-80=20

gain percent=20/100×100=20%

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