Question

A fruit vendor buys some oranges at thr rate of RS 5 per orange. He also buys an equal number of bananas at the rate of RS 2 per banana. He makes a 20% profit on oranges and 15% profit on bananas. At the end of the day, all fruits are sold out. his total profit is RS 390. Find the number of oranges purchased.

Answer 1

let the no. of oranges=no. of bananas=x
cp of oranges=5x
cp of bananas=2x
profit on sale of oranges=20%5x=x
profit on sale of bananas=15%2x=3x/10
a/q
x+3x/10=390
on solving this, the value of x=300