Question

Q13 A sells a watch to B at a gain of 20%,and B sells it to C at a loss of 10%. If C

pays Rs. 216. What does it costs to A?​

Answer 1

Answer:

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.  

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