Question

a man bought a certain number of lichies at 20 per rupee and an equal number at 30 per rupee. He mixed them and sold them at 25 per rupee. Find his gain or loss percent.

Answer 1

Answer:

let he bought 1kg of liches of 20/kg

cp of 20/kg =₹20

he bought 1kg of liches 30/kg

cp of 30/kg =₹30

on mixing it

cp of (1+1) kg=(30+20)

cp of 2kg =₹50

cp of 1kg =₹25

he sold it for 25/kg

cp=sp

hence no profit or no loss