EASY
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Earn 100

Find the greatest number that will divide and so as to leave the same remainder in each case.
(a)
(b)
(c)
(d)

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Important Questions on Problems on H.C.F and L.C.M
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The H.C.F. of two numbers is and the other two factors of their L.C.M. are and . The larger of the two numbers is:

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Six bell commence tolling together and toll at intervals of and seconds respectively. In minutes, how many times do they toll together?

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Let N be the greatest number that will divide and leaving the same remainder in each case. Then sum of the digits in N is :

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The greatest number of four digits which is divisible by and is _____.

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The product of two numbers is . If the H.C.F. of these numbers is , then the greater number is:

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Three numbers are in the ratio of and their L.C.M is . Their H.C.F is:

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The G.C.D. of and is:

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The product of two numbers is and their H.C.F. is . The number of such pairs is:
