find a rod of the greatest length which can measure exactly 42m,49,and 63m. Find also the numbers of rod of equal length contain in each len

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find a rod of the greatest length which can measure exactly 42m,49,and 63m. Find also the numbers of rod of equal length contain in each length

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Mia 2 weeks 2021-09-13T16:56:20+00:00 1 Answer 0 views 0

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    2021-09-13T16:57:20+00:00

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    42 = 2×3×7

    49 = 7×7

    84 = 2×2×3×7

    HCF of 42, 49 and 84 is 7

    the greatest length of the rod which can measure exactly 42m,49m and 84m is 7 m

    the number of times the rod of 7m is contained in 42m = 6 times

    the number of times the rod of 7m is contained in 49m = 7 times

    the number of times the rod of 7m is contained in 84m = 12 times

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