Ravish sold his motorcycle to Vineet at a loss of 28%. Vineet spend Rs. 1680 on its repairs and sold the motor cycle to Rahul for Rs. 35910, thereby making a profit of 12.5%, find the cost price of the motor cycle for Ravish.
Cost price of cycle for Rahul or Selling price for Vineet =Rs. 35910
Gain =12.5%
C.P for Vineet =S.P×100100+gain %
=35910×100100+12.5
=35910×100112.5
=35910×100×101125
=Rs. 31920
Expenditure on repairs = Rs. 1680
Therefore, actual cost of the motor cycle =Rs. 3192−1680=Rs. 30240
i.e., S.P for Ravish =Rs. 30240
Loss =28%
∴ C.P for Ravish =S.P×100100−loss %
=30240×100100−28
=30240×10072
=Rs. 42000