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  • An alloy contains the copper and aluminum in the ratio 7:4. While making the weapons from this alloy, 12% of the alloy get destroyed. If there are 12 kg of aluminum in the weapon, then the weight o

An alloy contains the copper and aluminum in the ratio 7:4. While making the weapons from this alloy, 12% of the alloy get destroyed. If there are 12 kg of aluminum in the weapon, then the weight of the alloy required is :

Option: 1

48 kg


Option: 2

40 kg


Option: 3

37.5 kg


Option: 4

14.4 kg


Answers (1)

best_answer

Copper : aluminum = 7:4
$\begin{aligned} & (88 / 100) *(4 \mathrm{x} / 11)=12 \\ & \mathrm{X}=37.5 \mathrm{~kg}\end{aligned}$

Posted by

Rakesh

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