Problema Solution
Patios can be made by mixing cubic meters of cement, gravel, and stones in the ratio 9:4:6. How much gravel is needed to make 209 cubic meters of patio?
Answer provided by our tutors
let
cement = 9x m^3
gravel = 4x m^3
stones = 6x m^3
when mixed all together they make 209 m^3 patio
9x + 4x + 6x = 209
by solving we find
x = 11
click here to see the step by step solution of the equation
gravel = 4*11 = 44 m^3
44 cubic meters gravel is needed for the patio.