Question 38

Nitin bought some oranges at Rs. 40 a dozen and an equal number at Rs. 30 a dozen. He sold them at Rs. 45 a dozen and made a profit of Rs. 480. The number of oranges, he bought, was

Solution

let the number of oranges bought be (x + x) = 2x dozens

total CP = 40x + 30x = 70x

total SP = $$ 45 \times 2x = 90x $$

profit = 90x - 70x = 20x

20x = 480

$$ x =\frac{480}{20} = 24 $$

number of oranges bought = $$ 2 \times 24 = 48 $$

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