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## bob the builder is making 480 kg of concrete mix concrete is made by mixing cement, sand and gravel in the ratio 1 : 3 : 4

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bob the builder is making 480 kg of concrete mix

concrete is made by mixing cement, sand and gravel in the ratio 1 : 3 : 4

how much sand does he need?

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Mathematics
1 month
2021-08-15T05:22:22+00:00
2021-08-15T05:22:22+00:00 2 Answers
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## Answers ( )

Answer:180 kg

Step-by-step explanation:The ratio is

cement :

sand: gravel1 :

3: 4If he used 1 kg cement, 3 kg sand, and 4 kg gravel, he’d get 8 kg of concrete.

He wants to make 480 kg of concrete.

480/8 = 60

He needs 60 times more concrete than the numbers in the ratio.

60 * 3 kg = 180 kg

Answer: 180 kg

Answer:If sand is 3 in the ratio, it is 180kg

Step-by-step explanation:480/8=60 60 times 3 is 180