- 726 m3
- 828 m3
- 869 m3
- 1127 m3

**Solution:**

35 Laborers ⇒ 5hrs (for 805 cubic meters earth)

30 Laboureres ⇒ x

By Cross multiplication 30*5 = 35*x ⇒x=30/7 hrs

805 cubic meters ⇒ 30/7 hrs (for 30 labourers)

y cubic meters ⇒ 6hrs

805*6 = (30/7)*y

⇒ y = 805*6*(7/30)

⇒ y = 1127 cubic meters