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21 April, 10:19

At the beginning of the first day, a granite quarry has 14 truckloads of granite ready for delivery. Every day, the quarry mines 8 truckloads of granite and delivers 6 truckloads. How many truckloads of granite does the quarry have on hand at the beginning of the sixth day? A. 50 B. 22 C. 62 D. 24

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  1. 21 April, 13:30
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    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.
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