self Maths Puzzle

A woman buys apples at 15 for a rupee and the same number at 20 a rupee. She mixes and sells them at 35 for 2 rupees. What is her gain per cent or loss per cent?

Read Solution (Total 2)

2.04% loss
If number of apples=2n
Total Cost Price(in Rs)=n/15 + n/20= 7n/60
Selling Price @35 for 2 Rs= 2n*2/35=4n/35
% of S.P. to C.P=100[(4n/35)/(7n/12)]=97.959
So loss %=100- 97.959= 2.04
10 years agoHelpfull: Yes(0) No(2)

No gain or loss in transaction
10 years agoHelpfull: Yes(0) No(1)

self Other Question

A man lent Rs. 2000 - partly at 5% and the balance at 4%. If he receives Rs. 92 towards annual interest, find the amount lent at 5%. Goods are purchased for Rs. 450 and one-third is sold at a loss of 10%. At what profit per cent should the remainder be sold so as to gain 20% on the whole transaction?