Question

Find the LC M
of a rope which can be cut into the whole number of peicies of lenghts 34 cm,52 cm, and 78 cm.

Answer 1

Answer:

Correct option is

B

4m

16=2×2×2×2

20=2×2×5

Maximum length of the piece that has to be cut=H.C.F of 16m and 20m

Now HCF of 16 and 20 is 4

∴ Required length=4m