Question

A pile of sand has a weight of 90 kg the sand is put into a small bag a medium bag and a large bag in the ratio 2:3:7

work out the wight of sand in each bag

Answer 1

15 kg, 22.5 kg, 52.5 kg

Explanation:

Let the common multiplier of the given ratios be x. Therefore, weights of each bag would be 2x, 3x and 7x

According to the given information:

`2x + 3x + 7x = 90 \\ 12x = 90 \\ x = (90)/(12) \\ x = 7.5 \: \\ \implies \\ 2x = 2 * 7.5 = 15 \: kg \\ 3x = 3 * 7.5 = 22.5 \: kg \\ 7x = 7 * 7.5 = 52.5 \: kg`

Hence the weight of sand in bag would be 15 kg, 22.5 kg and 52.5 kg