Question

# A man buys oranges at Rs $$5$$ a dozen and an equal number at Rs $$4$$ a dozen. He sells them at Rs$$5.50$$ a dozen and makes a profit of Rs$$50$$. How many oranges does he buy?

Solution

## Cost Price of $$2$$ dozen oranges Rs.$$(5 + 4) =$$ Rs.$$9.$$ Sell price of $$2$$ dozen oranges $$=$$Rs. $$11.$$ If profit is Rs $$2$$, oranges bought $$= 2$$ dozen. If profit is Rs. $$50,$$ oranges bought $$= \dfrac{2}{2} \times 50$$ dozens $$= 50$$ dozens.Mathematics

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