Multiple choice

There are two jars which have milk and water mixture in them. In the first jar, mixture of milk to water is 3 : 2 and in the second one, it is 4 : 5. If 5 litres of the first type is added to the 18 litres of the second type, what is the ratio of milk to water in the new mixture?

  1. 3 : 5

  2. 11 : 12

  3. 12 : 11

  4. 15 : 13

  5. 16 : 12
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B Correct answer
Explanation

Jar 1: 5 litres, ratio 3:2 (3 litres milk, 2 litres water). Jar 2: 18 litres, ratio 4:5 (8 litres milk, 10 litres water). Total milk = 3 + 8 = 11. Total water = 2 + 10 = 12. Ratio = 11:12.

AI explanation

From the 5 liters of the first mixture, the milk is 3 liters and the water is 2 liters based on the 3 to 2 ratio. From the 18 liters of the second mixture, the milk is 4 divided by 9 of 18, which is 8 liters, and the water is 5 divided by 9 of 18, which is 10 liters. Combining these gives a total of 11 liters of milk and 12 liters of water, making the new ratio 11 to 12.

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