The cost price of 12 candles is equal to the selling price of 15 candles. Find the loss per cent.
Let SP of 15 candles = Rs.100.
CP of 12 candles = SP of 15 candles = Rs.100
CP of 15 candles =
= Rs.125
Loss = CP – SP
= 125 – 100
= 25
= 20%