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)

Problems on H.C.F and L.C.M

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 2 of 5.

Jitan said: 2 years ago

Why we multiply 700 with 385?

Anyone, explain this step in detail?

(5)

Aditya (dada) said: 9 years ago

How to decide whether to take hcf or lcm for such sums?

Prasad.p said: 9 years ago

Thanks for solving this sum. It is very helpful to me.

Mounika said: 9 years ago

Thank you for the Excellent explanation @Aparna.

Ramboo said: 10 years ago

Because question says greatest possible length.

(1)

Nikhil said: 1 decade ago

Why it is HCF? why not LCM?

Please explain.

Gopi krishna said: 1 decade ago

How we can find factors for such numbers?

146 said: 1 decade ago

Please give me the prime factors of 1295.

Sanjay said: 6 years ago

Can anyone explain me clearly to get it?

(5)

Bunny said: 8 years ago

How to find factors? Someone explain me.

Post your comments here:

Quick links

Quantitative Aptitude

Verbal (English)

Reasoning

Programming

Interview

Placement Papers