Profit & Loss
A trader buys 300 earthen lamps at a rate of RS 6 per earthen lamp. Few of them are defective. The trader sold defective earthen lamps at a rate of RS 4.50 and remaining at a profit of 25%. As a result, he earns 16*2/3% as a profit. Accordingly what was the no. of defective lamps?
option B 50 but m not so sure about it.