If 20% of A is added to 40% of B, the answer is 50% of B. What percentage of B is A?50%45%40%30%
Question
If 20% of A is added to 40% of B, the answer is 50% of B. What percentage of B is A?50%45%40%30%
Solution
The problem can be solved by setting up an equation based on the information given:
20% of A (0.2A) plus 40% of B (0.4B) equals 50% of B (0.5B).
This can be written as:
0.2A + 0.4B = 0.5B
We can rearrange the equation to find A:
0.2A = 0.5B - 0.4B
0.2A = 0.1B
To find A as a percentage of B, we divide both sides by B and multiply by 100:
A = (0.1B / B) * 100
A = 10%
So, A is 10% of B.
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