Question

1 kg of washing powder cost for 2 Rupees the company decide to offer 12.5% of the cost of Pound free how many grams of washing powder is a for free of cost by 1 kg of it

Answer 1

if 1kg washing powder -RS40

so,1000g washing powder-RS40
1g washing powder-
$40 \div 1000 = rs0.04$

cross load:

12.50% washing powder cost =
$rs40 \times rs12.50\% =rs 5$
there for
$5 \times 0.04 = 125g$