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Find the HCF of the following numbers :...

Find the HCF of the following numbers :(a)  18, 48             (b)  30, 42                (c)  18, 60                (d) 27, 63        (e)  36, 84                        (f)   34, 102                  (g)  70, 105, 175   (h)  91, 112, 49        (i)    18, 54, 81          (j)  12, 45, 75

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