Ratio and Proportion Practice Test 3

Question : 15 of 40

Marks: +1, -0

72 kg of Alloy A is mixed with 100 kg of Alloy B. If Alloy A has lead and tin in the ratio 5 : 7 and Alloy B has tin and copper inthe ratio 11 : 9, then the amount of tin in the new alloy is:

101 kg
95 kg
59 kg
97 kg
60 kg

Validate

Solution:

Quantity of tin in 72 kg of A =

72×7/12

kg = 42 kg
Quantity of tin in 100 kg of B =

100×11/20

kg = 55 kg
∴ Quantity of tin in the new alloy = 97 kg

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