Question

Thoiba bought 150 toy guns for RS.11250.He sold 30 of them at a gain of 8%. At what gain percent must be sell the remaining so as to gain 12% on the whole?

Answer 1

In order to gain 12 % on the whole the entire items must be sold at = 12600

the cost of one toy gun = 11250/150= 75

so the selling price of 30 toy guns at 8 % gain = (30×75 × 108)/100 = 2430

Now 12600 - 2430 = 10170

120×75 = 9000


10170-9000 = 1170

Now now find 1170 is what percent of 9000. the answer is 13 %...