An alloy contains zinc, copper and tin in the ratio 2:3:1 and another contains copper, tin and lead in the ratio 5:4:3. If equal weights of both alloys are melted together to form a third alloy, then the weight of lead per kg in new alloy will be: : Crackverbal Support

An alloy contains zinc, copper and tin in the ratio 2:3:1 and another contains copper, tin and lead in the ratio 5:4:3. If equal weights of both alloys are melted together to form a third alloy, then the weight of lead per kg in new alloy w Print

Modified on: Tue, 12 Oct, 2021 at 12:29 PM

CONCEPT: The question tests on the application of techniques in proportion and ratios.

SOLUTION:

Refer to the figure attached.
Convert the ratios of the first alloy into 4:6:2 so that the quantities of the alloys are made equal(12 units each).

Thus weight of lead = 3/(12+12) = 3/24 =1/8 kg (OPTION B)

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An alloy contains zinc, copper and tin in the ratio 2:3:1 and another contains copper, tin and lead in the ratio 5:4:3. If equal weights of both alloys are melted together to form a third alloy, then the weight of lead per kg in new alloy w Print

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