Question

A mixture of cement, sand and gravel in the ratio
of 1:2:4 by volume is required. A person wishes to measure out quantities by weight. He finds that the weight of one cubic foot of cement is 94 kg, of sand 100 kg and gravel 110 kg. What should be the
ratio of cement, sand and gravel by weight in order
to give a proper mixture?

Answer 1

Answer:

638

Step-by-step explanation:

Answer 2

Step-by-step explanation:

Required volume ratio = 1:2:4

given : weight of 1cubic foot of cement=94kg

weight of 1cubic foot of sand=100kg

weight of 1cubic foot of gravel=110kg.

Taking the ratio by volume; cement:sand:gravel=94:100:110

required ratio = 1:2:4

ratio for proper mixture = 94:2*100:4*110

dividing by 2,we get 47:100:220 (answer).