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. 5)
5.
The greatest number of four digits which is divisible by 15, 25, 40 and 75 is:
9000
9400
9600
9800
Answer: Option
Explanation:

Greatest number of 4-digits is 9999.

L.C.M. of 15, 25, 40 and 75 is 600.

On dividing 9999 by 600, the remainder is 399.

Required number (9999 - 399) = 9600.

Discussion:
120 comments Page 12 of 12.

Anil said:   1 decade ago
What if we take 6 digits?

Pavan said:   1 decade ago
Why subtracted 9999-399?

John lyngdoh said:   7 years ago
Here it is 600*4^2=9600.

Thom said:   2 decades ago
How to find 600 is LCM?

Ram said:   1 decade ago
How to find 600 is LCM?

Bhargav said:   1 decade ago
Good answer rahul.

Gavisiddappa said:   7 years ago
Why 9999? Explain.

PRAKASG said:   9 years ago
Nice explanation.
(1)

Sanesh said:   1 decade ago
How you get 399?

Ragu said:   9 years ago
Thanks @Sruthi.


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