1. For finding maximum weight, we have to find H.C.F. of 75 and 69. Factors of 75 = 3 x 5 x 5 Factors of 69 = 3 x 69 H.C.F. = 3 Therefore the required weight is 3 kg.   https://www.tiwariacademy.com/ncert-solutions/class-6/maths/chapter-3/

    For finding maximum weight, we have to find H.C.F. of 75 and 69.
    Factors of 75 = 3 x 5 x 5
    Factors of 69 = 3 x 69
    H.C.F. = 3
    Therefore the required weight is 3 kg.

     

    https://www.tiwariacademy.com/ncert-solutions/class-6/maths/chapter-3/

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  2. (a) H.C.F. of two consecutive numbers be 1. (b) H.C.F. of two consecutive even numbers be 2. (c) H.C.F. of two consecutive odd numbers be 1.   https://www.tiwariacademy.com/ncert-solutions/class-6/maths/chapter-3/

    (a) H.C.F. of two consecutive numbers be 1.
    (b) H.C.F. of two consecutive even numbers be 2.
    (c) H.C.F. of two consecutive odd numbers be 1.

     

    https://www.tiwariacademy.com/ncert-solutions/class-6/maths/chapter-3/

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  3. (a) Factors of 18 = 2 x 3 x 3 Factors of 48 = 2 x 2 x 2 x 2 x 3 H.C.F. (18, 48) = 2 x 3 = 6 (b) Factors of 30 = 2 x 3 x 5 Factors of 42 = 2 x 3 x 7 H.C.F. (30, 42) = 2 x 3 = 6 (c) Factors of 18 = 2 x 3 x 3 Factors of 60 = 2 x 2 x 3 x 5 H.C.F. (18, 60) = 2 x 3 = 6 (d) Factors of 27 = 3 x 3 x 3 FactorRead more

    (a) Factors of 18 = 2 x 3 x 3
    Factors of 48 = 2 x 2 x 2 x 2 x 3
    H.C.F. (18, 48) = 2 x 3 = 6

    (b) Factors of 30 = 2 x 3 x 5
    Factors of 42 = 2 x 3 x 7
    H.C.F. (30, 42) = 2 x 3 = 6

    (c) Factors of 18 = 2 x 3 x 3
    Factors of 60 = 2 x 2 x 3 x 5
    H.C.F. (18, 60) = 2 x 3 = 6

    (d) Factors of 27 = 3 x 3 x 3
    Factors of 63 = 3 x 3 x 7
    H.C.F. (27, 63) = 3 x 3 = 9

    (e) Factors of 36 = 2 x 2 x 3 x 3
    Factors of 84 = 2 x 2 x 3 x 7
    H.C.F. (36, 84) = 2 x 2 x 3 = 12

    (f) Factors of 34 = 2 x 17
    Factors of 102 = 2 x 3 x 17
    H.C.F. (34, 102) = 2 x 17 = 34

    (g) Factors of 70 = 2 x 5 x 7
    Factors of 105 = 3 x 5 x 7
    Factors of 175 = 5 x 5 x 7
    H.C.F. = 5 x 7 = 35

    (h) Factors of 91 = 7 x 13
    Factors of 112 = 2 x 2 x 2 x 2 x 7
    Factors of 49 = 7 x 7
    H.C.F. = 1 x 7 = 7

    (i) Factors of 18 = 2 x 3 x 3
    Factors of 54 = 2 x 3 x 3 x 3
    Factors of 81 = 3 x 3 x 3 x 3
    H.C.F. = 3 x 3 = 9

    (j) Factors of 12 = 2 x 2 x 3
    Factors of 45 = 3 x 3 x 5
    Factors of 75 = 3 x 5 x 5
    H.C.F. = 1 x 3 = 3

     

    https://www.tiwariacademy.com/ncert-solutions/class-6/maths/chapter-3/

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  4. The smallest four prime numbers are 2, 3, 5 and 7. Hence, the required number is 2 x 3 x 5 x 7 = 210 https://www.tiwariacademy.com/ncert-solutions/class-6/maths/chapter-3/

    The smallest four prime numbers are 2, 3, 5 and 7.
    Hence, the required number is 2 x 3 x 5 x 7 = 210

    https://www.tiwariacademy.com/ncert-solutions/class-6/maths/chapter-3/

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