Truckloads at the beginning of first day =14
Truckloads mined on first day =8
Total truckload on first day = 8+14 = 22
Truckload delivered on first day = 6
Truckload at the end on first day = 22-6 = 16
Truckloads mined on second day =8
Total truckload on second day = 8+16 = 24
Truckload delivered on second day = 6
Truckload at the end on second day = 24-6 = 18
Truckloads mined on third day =8
Total truckload on third day = 8+18 = 26
Truckload delivered on third day = 6
Truckload at the end on third day = 26-6 = 20
Truckloads mined on fourth day =8
Total truckload on fourth day = 8+20 = 28
Truckload delivered on fourth day = 6
Truckload at the end on fourth day = 28-6 = 22
Truckloads mined on fifth day =8
Total truckload on fifth day = 8+22 = 30
Truckload delivered on fifth day = 6
Truckload at the end on fifth day = 30-6 = 24
So at the beginning of sixth day will be equal to what is at the end of fifth day.
Answer is 24 option D.
