PROFIT AND LOSS

1/2 of goods earn him a profit = 0.25 x 1/2 = 0.125 .

1/4 of goods would have earned him a profit of = 0.25 x 1/4

but since by discounting 10% he also loses 10% of profit,

the profit earned would be = 0.90 x (0.25 x 1/4) = 0.056

Similarly the remaining fraction i.e. 1/8 each earn him a profit of = 0.90(2 x 0.25 x1/8) = 0.056 

Hence total profit =    0.125 + 0.056 + 0.056 = 0.237 i.e. 23.7%

Regards,

Team,

TopperLearning.