Answer:
Option B.
Step-by-step explanation:
We need [tex]2\frac{3}{4}[/tex] wheelbarrows of sand for 8 wheelbarrows of concrete.
That means ratio between sand and concrete is [tex]2\frac{3}{4}:8[/tex]
Or [tex]\frac{11}{4}:8[/tex]
Now we have to calculate the amount of sand to make 248 cubic feet of concrete.
If the amount of sand required is x cubic feet then the ratio of sand and concrete will be x : 248.
Since both the ratios should be same therefore,
[tex]\frac{x}{248}=\frac{\frac{11}{4} }{8}[/tex]
[tex]\frac{x}{248}=\frac{11}{32}[/tex]
x = [tex]\frac{11\times 248}{32}[/tex]
x = [tex]\frac{2728}{32}[/tex]
x = [tex]\frac{341}{4}[/tex]
= [tex]85\frac{1}{4}[/tex] cubic feet
Option B will be the answer.
