Question

Graham makes concrete by mixing cement and ballast in the ratio 2: 7 he uses 6 buckets of cement work out how many buckets of ballast he uses

Answer 1

Answer:

21 buckets

Step-by-step explanation:

Ratio is 2:7

So for every 2 buckets of cement he uses 7 buckets of ballast

Therefore, he uses 1 bucket of cement for every 3.5 buckets of ballast

He uses 6 buckets of cement so he uses

6 x 3.5 = 21 buckets of ballast

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