Multiple choice

To a sugar solution of 3 litres containing 40% sugar, one litre of water is added. The percentage of sugar in the new solution is

  1. 33%

  2. 30%

  3. 15%

  4. 25%

  5. Cannot be determined
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The initial solution has 3 liters at 40% sugar, meaning 1.2 liters of sugar. Adding 1 liter of water makes the total volume 4 liters, while the amount of sugar remains 1.2 liters. The new percentage is (1.2 / 4) * 100 = 30%.

AI explanation

The initial 3 liters of solution contains 40% sugar, so the amount of sugar is 0.40 multiplied by 3, which equals 1.2 liters. Adding 1 liter of water increases the total volume of the solution to 4 liters. The percentage of sugar in the new solution is 1.2 divided by 4, and then multiplied by 100, which gives 30%.

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