Question

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

A) 15 cm B) 25 cm C) 35 cm D) 42 cm

Answer 1

the greatest possible length which can be used to measure exactly the length is 15m

Answer 2

7m = 700cm

3m 85 cm = 385 cm

12 m 95 cm = 1295 cm

HCF of 700,385 and 1295 is 35.

So to measure exactly, the greatest length we can use is 35cm.