Aptitude - Problems on H.C.F and L.C.M - Discussion

Discussion Forum : Problems on H.C.F and L.C.M - General Questions (Q.No. 21)
21.
The greatest possible length which can be used to measure exactly the lengths 7 m, 3 m 85 cm, 12 m 95 cm is:
15 cm
25 cm
35 cm
42 cm
Answer: Option
Explanation:

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

Discussion:
42 comments Page 5 of 5.

Jitan said:   3 years ago
Why we multiply 700 with 385?

Anyone, explain this step in detail?
(5)

Ajay said:   8 months ago
1 meter =100cm.
7 meter become 700 cm,
3m 85cm become 385cm,
12m 95cm became 1295cm,
HCF of 700,385,1295 is 35,
So, 35 is the required answer.


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