Question

0.Cement, sand, and gravel are mixed in the ratio 1:2:3
respectively, to make concrete. What percentages of
cement, sand, and gravel are used in concrete?​

Answer 1

Answer:

Total parts= 6

%of cement= 1/6×100=100/6=16.66...

%of sand= 2/6×100=200/6=33.33...

%of gravel= 3/6×100=50%

(... represents non terminating repeating decimal)

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Answer 2

Answer:

cement, sand, gravel =1:2:3

percent of cement = 1/6x100%=16.6%

percent of sand = 2/ 6x100%=33.8%

percent of gravel = 3/ 6x100%= 50%