5 kg of metal A and 20 kg of metal B are mixed to form an alloy. The percentage of metal A in the alloy is · ABC26GN2187

Subject: General Aptitude · Chapter: Percentage

5 kg of metal A and 20 kg of metal B are mixed to form an alloy. The percentage of metal A in the alloy is
(a)20\%
(b)25\%
(c)40\%
(d)None of these
Answer
Answer (as printed): A
Explanation
Weight of metal $\mathrm{A}=5 \mathrm{kg}$. Total weight of the alloy $=(5+20) \mathrm{kg}=25 \mathrm{kg}$. $$\text { ∴ } \text { Required percentage }=\left(\frac{5}{25} \times 100\right) \%=20 \% .$$

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