Concrete is made by mixing gravel, sand and cement in the ratio 3, 2, 1 what percentage of mixture of gravel
To determine the percentage of gravel in the mixture, we first need to calculate the total parts in the mixture.
The ratio given is 3 parts gravel, 2 parts sand, and 1 part cement, for a total of 3 + 2 + 1 = 6 parts in total.
To find the percentage of gravel in the mixture, we divide the number of parts of gravel (3) by the total number of parts in the mixture (6) and then multiply by 100 to get the percentage:
(3/6) x 100 = 50%
Therefore, gravel makes up 50% of the mixture.