virtualanimosity wrote:

Q.

Ordinary sugar contains 32% impurities, while processed sugar has 18% impurities.How many kilograms of ordinary sugar must be processed to yield 102 kg of processed sugar?

1.185

2.246

3.123

amount of processed sugar = 102 kg.

amount of pure sugar in this = 82% of it = 83 kg (approx)

we need x kg of ordinary sugar which contains 83kg of pure sugar.

ordinary sugar has 68% pure sugar.

so basically 2/3(approx) of ordinary sugar is pure sugar.

pure sugar = 83

so ordinary sugar = 83 x (3/2)=123 (approx)

so 3.

did approximations as options are quite far apart.

_________________

The Legion dies, it does not surrender.