Question

In what proportion may 3 kinds of tea priced at rs.80,rs.70,rs.50 per kg be mixed to produce a mixture worth rs.60 per kg

Answer 1

A shopkeeper mixes 35 kg of wheat which cost him rs.15 per kg with 25 kg of wheat which cost him rs.20 per kg.he sells the mixture at rs.22 per kg.his gain is