Multiple choice

DIRECTION for the question: Solve the following question and mark the best possible option. 5 kg of metal A and 20 kg of metal B are mixed to form an alloy. What is the percentage of metal A in the allow?

  1. 20%

  2. 25%

  3. 40%

  4. 50%

  5. 60%
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The total mass is 5 + 20 = 25 kg. Metal A forms 5/25 x 100 = 20% of the alloy, so option A is correct.

AI explanation

The total weight of the alloy is the sum of the weights of metal A and metal B, which is 5 kg plus 20 kg, giving 25 kg. To find the percentage of metal A, divide its weight by the total weight and multiply by 100, yielding (5 / 25) multiplied by 100. This calculates to 20%.

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