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Question

A fruit vendor buy some oranges @ rupees 5 per Orange. he also buys an equal number of Bananas at the rate of 2 per banana. he also makes up 20% profit on oranges and a 15 percentage on bananas on us at the end of the day all the fruits is sold out he is total profit is rupees 390 find the number of oranges purchased.


Solution

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


Mathematics

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