What is the greatest possible length which can be used to measure exactly the lengths 12 m, 6 m and ...

What is the greatest possible length which can be used to measure exactly the lengths 12 m, 6 m and 40 m?

Quiz

Answer/Solution

2m

Steps/Work

Required length = HCF of 12 m, 6 m, 40m = 2m
Answer is A