Problema Solution
A fruit vendor buys some oranges at the 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 a 15% profit on bananas.at the end of the day,all the fruit is sold out.his total profit is rs 390.find the number of oranges purchased
Answer provided by our tutors
let the no. of oranges purchased be x.
cost price of oranges=5x.
he buys equal no. of bananas.
so no. of bananas=x.
cost price of x bananas=2x.
Now, he makes a profit of 20% on oranges.
therefore, selling price of oranges=5x+20%of 5x
=6x
profit on oranges=6x-5x=x
he makes a profit of 15% on bananas
therefore, selling price of bananas=2x+15% of 2x
=23x upon 10
profit on bananas=23x /10-2x=3x /10
Total profit made =x+3x /10=13x /10
According to ques,,, 13x /10=Rs 390
therefore x=300----Answer