Question

If 2 over 5 of a ton of concrete covers 5 over 6 of a wall, how many tons of concrete are required to cover the entire wall?

12/25 ton

3/5 ton

1   7/30 tons

2    1/12 tons

Answer 1

Set up a proportion and use the cross multiply method to solve for x.
2/5 divided by 5/6 =x
2/5 divided by 5/6 is equal to 2/5 times 6/5
x=12/25 ton