A) 44 kg
B) 24 kg
C) 53 kg
D) 80 kg
Correct Answer: A
Solution :
[a] The amount of tin in the new alloy \[=\frac{2}{5}\times 60+\frac{1}{5}\times 100\] \[=2\times 12+20=44\,\text{kg}\] |
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