The greatest possible length which can be used to measure exactly the lengths 7

Question

The greatest possible length which can be used to measure exactly the lengths 7 m, 3 m 85 cm, 12 m 95 cm is:

Options:

A . 15 cm

B . 25 cm

C . 35 cm

D . 42 cm

Answer: Option C

Required length = H.C.F. of 700 cm, 385 cm and 1295 cm = 35 cm.

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