Question

If S.P.=690
Profit%=15%
Find Profit in Rs. without finding C.P.

Answer 1

SP = Rs 690, Profit%= 15%

If CP is Rs 100, then SP is Rs 115
If SP is Rs 115, then CP is Rs 100
If SP is Re 1, then CP is Rs $\frac{100}{115}$
If SP is Rs 690, then CP is Rs $\frac{100}{115}$×690=Rs 600

Profit=SP-CP
       = Rs(690-600)
       =Rs 90
            

Answer 2

the answer will be 103.5
for 100 profit will be 15
100        15
690         ?   =690*15/100=103.5 Rs..............................