One full glass contains vinegar and water in the ratio of 1:3.
Another full glass of twice the capacity of the first vinegar and water in the ratio 1:4.
If the contents of both glasses were mixed together, what then is the ratio of vinegar to water?
1 glass capacity = X
vinegar 1/4 = 0.25X
water 3/4 = 0.75 x
2 glass capacity = 2X
vinegar 1/5 = 0.2(2X) = 0.4X
water 4/5 = 0.8(2X) = 1.6X
both glasses capacity = X + 2X = 3X
vinegar 0.25X + 0.4X = 0.65X
water 0.75X + 1.6X = 2.35X
vinegar/water ratio = 0.65/2.35
check 0.65X + 2.35X = 3X
