Question

Two identical jars are filled with mixtures of water and vinegar in the ratio of 2 to 1 and 3 to 1 respectively. If both jars are emptied into another container then the ration of water to vinegar in the mixture is
A)5 to 1 B) 12 to 5 c) 17 to 7. d) 6 to 5 e) 5 to 2

Answer 1

Answer:

17:7

Step-by-step explanation:

The first jar is 2/3 water, and the second jar is 3/4 water.  Since the jars are equal volume, the resulting mixture will be the average.

(2/3 + 3/4) / 2

(8/12 + 9/12) / 2

(17/12) / 2

17/24

If the jar is divided into 24 parts, 17 parts are water, and the remaining 7 parts are vinegar.  So the ratio is 17:7.