Question

A sells a bicycle to B at a profit of 20 percent and B sells it to C at a profit of 5 percent. If C pays Rs.3780, what did A pay for it?

Answer 1

Let the C.P of A be 100.

Given that A sells a bicycle to B at 20%. Then the cost price of B = 100 + 20% of 100 = 120%.

Given that B sells a bicycle to C at 5%.Then the cost price of C = 120 + 5% of 120 =120 + 6 = 126.

Given The cost price of C = 3780

If 126 = 3780

     1 = 3780/126

    100 = (3780 * 100)/126

           = 3000.


Cost price of A = 3000.

Hope this helps!

Answer 2

Answer:

The CP is 125 for C, when CP for B is 100. So, CP is 1500 for C, when CP for B = 100*1500/125 = Rs 1200 Similarly The CP is 120 for B, when CP for A is 100. So, CP is 1200 for B, when CP for A = 100*1200/12 = Rs 1000 Therefore CP for A = Rs 1000.