Question

Harry bought 20kg of rice at Rs18per kg and 25 kg of rice at rupees 16 per kg. he mixed the two varieties and sold the mixture at rupees 19 per kg. find his gain percent in the whole transaction

Answer 1

total cp of 20 kg = 20 × 18 = Rs 360
total cp of 25 kg = 16 ×25 = Rs 400
total cp = 760/-
total quantity of rice = 45 kg.
Sp of 1 kg = 19/-
Sp of 45 kg = 19 × 45 = 855/-
Gain = 855/- - 760/' =95/-.
Gain % = 95 ×100 ÷760.
= 12.5 %