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 ?

540
770
630
420

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Problems on H.C.F and L.C.M
Find the HCF of of 0.36, 0.48, 0.72 and 2.4

0.16
0.12
0.8
0.4

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Problems on H.C.F and L.C.M
LCM of 0.12, 0.15, 0.2 and 0.54?

7.8
5.4
2.8
9.2

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