Multiple choice

A 60 kg sample of an alloy A is mixed with a 100 kg sample of another alloy B. If the sample of alloy A has lead and tin in the ratio 3 : 2 and that of alloy B has tin and copper in the ratio 1 : 4, then the amount of tin in the newly formed alloy sample is

  1. 36 kg

  2. 44 kg

  3. 53 kg

  4. 80 kg
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Alloy A (60 kg) has tin = (2/5)*60 = 24 kg. Alloy B (100 kg) has tin = (1/5)*100 = 20 kg. Total tin = 24 + 20 = 44 kg.

AI explanation

Alloy A contains lead and tin in the ratio 3 : 2, meaning a 60 kg sample holds 24 kg of tin. Alloy B contains tin and copper in the ratio 1 : 4, meaning a 100 kg sample holds 20 kg of tin. The total amount of tin in the newly formed 160 kg alloy is 24 kg plus 20 kg, resulting in 44 kg.

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