Question

In what ratio must a grocer mix two varieties of sugar worth Rs$60$ per kg and and Rs.$65$ a kg so that by selling the mixture at Rs.$68.20$ per kg, he could gain $10\%?$

Answer 1

REF.Image

Gain = 10%

Selling price = Rs. 68.20 per kg

cost price = $\frac{68.20\times 100}{110}=Rs62$ per kg

The ratio in which th two varieties of sugar need to be mixed to get a cost price of Rs 62 per kg

By rule of allegation.

$\therefore$ Required ratio is 3:2