Problems on H.C.F and L.C.M
A rectangular courtyard 3.78 metres long and 2.25 metres wide is to be paved exactly with square title, all of the same size. What is the largest size of the tile which could be used for the purpose

42 cms
21 cms
11 cms
None of these

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Problems on H.C.F and L.C.M
What will be the least number which when doubled will be exactly divisible by 12, 18, 21 and 30 ?

420
770
540
630

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Problems on H.C.F and L.C.M
What is the greatest number that will divide 99, 147 and 219 leaving the same reminder in each case?

23
24
22
25

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Problems on H.C.F and L.C.M
Find the greatest number that will divide 147,185 and 251 leaving the remainders 3,5 and 11 respectively.

12
14
13
11

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