Question:
The amount of water (in ml) that should be added to reduce 9 ml lotion, containing 50% alcohol, to a lotion containing 30% alcohol, is
The amount of water (in ml) that should be added to reduce 9 ml lotion, containing 50% alcohol, to a lotion containing 30% alcohol, is
Updated On: Jan 30, 2025
- 5 ml
- 4 ml
- 3 ml
- 6ml
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The Correct Option is D
Solution and Explanation
Lotion is 9 ml
Alcohol is 4.5 ml
water is 4.5 ml
Let water be added is x ml
Hence, x + 4.5 = 70% of (9 + x) [since alcohol is 30%, so water is (100-30) = 70%]
x = 6 ml
Therefore, the correct option is (D): 6ml
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