Madhya Pradesh Police Exam Model Paper 6

Question : 63 of 101

Marks: +1, -0

The weights of lead, iron, and tin in an alloy weighing 85 kg are in the ratio 3 ∶ 5 ∶ 9. Find the difference in weights of tin and lead.

Solution:

GIVEN:
Weight of alloy = 85 kg
The ratio of weights of lead. Iron, and tin = 3 ∶ 5 ∶ 9
EXPLANATION:
Total weight in ratio

= 3 + 5 + 9 = 17

unit
17 unit = 85 kg
⇒ 1 unit = 5 kg
Difference between weights of tin and lead = 9 – 3 = 6 unit
⇒ 6 unit = 30 kg
∴ The answer will be 30 kg

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