aaishah005 aaishah005

15-03-2020
Mathematics

contestada

A pile of sand has a weight of 90kg.
The sand is put into a small bag , a medium bag and a large bag
in the ratio 1 : 2 : 7
work out the weight of sand in each bag

Respuesta :

jimrgrant1 jimrgrant1

15-03-2020

Answer:

9Kg, 18Kg and 63 Kg

Step-by-step explanation:

Sum the parts of the ratio, 1 + 2 + 7 = 10 parts

Divide the weight of sand by 10 to find the value of one part of the ratio

90 Kg ÷ 10 = 9 Kg ← value of 1 part of the ratio, thus

2 parts = 2 × 9 Kg = 18 Kg

7 parts = 7 × 9 Kg = 63 Kg

Thus the weights of each bag are 9 Kg, 18 Kg and 63 Kg

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