Question
Find the greatest number which when divide 28, 82 & 109
leave a same remainder 1 in each case?Solution
The greatest number which when divide 28,82 & 109 leave a same remainder 1 in each case = HCF (28 - 1, 82 -1 , 109 - 1 ) = HCF (27, 81, 108 ) = 27.
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