Question

If sp of 15 candles is equal to cp of 16 candles find its profit or loss

Answer 1

process is like this
try your own

Answer 2

It is given that cost of 12 candles is equal to the selling price of 15 candles.

It means the ratio of CP and SP is 5:4.

Let the CP of candle be 5x ans SP of candle be 4x.

Therefore the loss percentage is 20%.