Problema Solution
In a mixture of concrete, there are three pounds of cement mix for each pound of gravel. If the mixture contains a total of 64 pounds of these two ingredients, how many pounds of gravel are there?
Answer provided by our tutors
Given, 3 pounds of cement mix for 1 pound of gravel.
Let amount of gravel is x so amount of cement mix=3x.
So, x+3x=64
4x=64
x=16
Therefore there are 16 pounds of gravel.