Question

a mixture of concrete is made up of sand and cement in the ratio of 5:3.how many cubic centimeters of sand is needed to make 160 cubic centimeters of concrete mix

Answer 1

Answer:

100 cubic centimeters of Sand iss required.

Step-by-step explanation:

Let x be the quantity of the mixture.

Sand : Cement = 5 : 3

⇒ 5x + 3x = 160

   8x = 160

     x = 20

Sand = 5x = 5(20) = 100 cubic centimeters