Question

a grocer bought sugar worth of 4500 he sold 1/3 of it at the gain of 10% at what gain percent must be remaining sugar sold to have gain of 12% in the whole

Answer 1

Solution :

Given, Total cost price of sugar = 4500

So, $\frac{1}{3}$ of cost price = $\frac{1}{3} \times 4500 = 1500$

Total gain on $\frac{1}{3}$ of cost price = $\frac{10}{100} \times 1500 = 150$

He needs to earn a total profit of 12%.

∴ $\frac{12}{100} \times 4500 = 540$

So, profit to be earned from remaining $\frac{2}{3}$.

∴ 540 - 150 = 390

Profit percent = $\frac{390}{3000} \times 100$ = 13%