Question

A sold an article to B at a gain of 20%, B sold it to C for Rs. 138, thereby enjoyed a gain of 15%.
Find the price at which A bought it.
articles is equal to the SP of articles Find the gain percent.​

Answer 1

Answer:

Let the C.P. of A = Rs. x

Gain = 20%

∴ S.P. of A =

100

120

×Rs.x=Rs.

100

120x

C.P.ofB=Rs.

100

120x

Loss=10%

∴S.P.ofB=

100

90

×

100

120x

=Rs.

25

27x

⇒C.P.ofC=

25

27x

Given

25

27x

=216⇒x=Rs.200

Answer 2

Step-by-step explanation:

Let the C.P. of A = Rs. x

Gain = 20%

∴ S.P. of A = 100/120 × Rs.x=Rs. 100/120x

C.P.ofB = Rs. 120x/100

Loss=10%

∴S.P.ofB= 100/90 × 100/120x =Rs. 25/27x

⇒C.P.ofC= 25/27x

Given 25/.27x

=216⇒x=Rs.200