Multiple choice

Ana is making slime, such that the ratio of water to slime powder in a mixture of 40 litres is 7 : 3. Find the quantity of water to be added to the mixture in order to make this ratio 5 : 1.

  1. 32 L

  2. 42 L

  3. 30 L

  4. 40 L

  5. 28 L
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A Correct answer
Explanation

Initial: Water = 28L, Powder = 12L. Let x be water added. (28+x)/12 = 5/1. 28+x = 60. x = 32L.

AI explanation

In the initial 40 litres of slime, water is 7/10 of the mixture, which is 28 litres. To make the ratio of water to the total mixture 5 to 1, the required water is five times the slime powder. Since the slime powder is 12 litres, the total water needed is 60 litres. The water to be added is 60 litres minus 28 litres, which is 32 L.

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