Question

a builder is making 480kg of concrete mix. concrete is made by mixing cement, sand and gravel in a ratio of 1:3:4. how much sand do they need

Answer 1

Answer:

180 kg

Step-by-step explanation:

mixture ratio: 1:3:4

Total =1+3+4=8

so ratio of sand/mixture=3/8

sand in 480 kg mixture

=3/8*480

=3*60

=180 kg