1.

John sells red chili powder. To earn more profit, he mixes brick powder in red chili powder. He buys red chili powder at Rs. 3000 per kg and sells at 5% less than cost price. How much brick powder should he mix in 5 kg of red chili powder so as to earn a profit of 12%?1). 756 grams2). 895 grams3). 990 grams4). 1 kg

Answer»

SUPPOSE he mixes T kg of brick powder in 5 kg of chili powder.

Cost price of 5 kg of chili powder = Rs. 3000 × 5 = Rs. 15000

After mixing, total amount of mixture = (5 + T) kg

Selling price of 1 kg of mixture = 3000 – 3000 × (5/100) = Rs. 2850

Selling price of (5 + T) kg of mixture = Rs. 2850 × (5 + T) = Rs. (14250 + 2850T)

We know, Selling Price = Cost Price × (1 + (Profit Percentage)/100)

(14250 + 2850T) = 15000 × (1+ 12/100)

14250 + 2850T = 16800

T = 2550/2850 = 0.895

∴ 0.895 kg or 895 GRAMS of brick powder should be mixed.


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