Answer:
6 1 / 24
Step-by-step explanation:
in 1 hour - 5 / 6 tons of dust
Total dust = 7 1 / 4 = 29 / 4
1 ----- 5 / 6
x ----- 29 / 4
x = (29 / 4 ) * (5 / 6)
x = 145 / 24
x = 6 1 / 24
