Question

the ratio of milk to water is 3:7 in a certain mixture. find the quantities of milk and water in 5L of the mixture​

Answer 1

Answer:

Milk: 1.5L Water: 3.5L

Step-by-step explanation:

Let x be the constant of proportionality.

Therefore, milk = 3xL & water = 7xL

mixture = 3x + 7x = 10x L

B.T.P.,

10x = 5

x = 0.5

Therefore, milk = 3x = (3×0.5)L = 1.5L

& water = 7x = (7×0.5)L = 3.5L

Answer 2

Answer:

Step-by-step explanation:

Ratio of milk to water = 3:7

  Percentage of milk in the mixture = 30%

  Percentage of water in the mixture = 70%

∴ Amount of milk in the mixture = $\frac{30}{100}$ × 5L = 1.5L

  Amount of water in the mixture = $\frac{70}{100}$ × 5L = 3.5L

                                                          = (or) 5L - 1.5L = 3.5L