Multiple Choice Questions

Three numbers are in the ratio of 3 4 5 and their L C M is 3600 Their HCF is ........

Quantitative Aptitude (PCS) LCM, HCF

Three numbers are in the ratio of 3:4:5 and their L.C.M is 3600.Their HCF is

100

120

Let the numbers be 3x, 4x, 5x.

Then, their L.C.M = 60x.

So, 60x = 3600 or x = 60.

Therefore, The numbers are (3 x 60), (4 x 60), (5 x 60).

Hence,required H.C.F=60

Hence, option 2 is the correct answer.

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