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

@ : Home > Aptitude > Problems on H.C.F and L.C.M > General Questions - Discussion
5. 

The greatest number of four digits which is divisible by 15, 25, 40 and 75 is:

[A]. 9000[B]. 9400
[C].
9600
[D]. 9800

Answer: Option C

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.


Ram said: (Thu, Jul 15, 2010 09:09:43 AM)    
 
how to find the l.c.m number the value is 600

Thom said: (Sat, Aug 14, 2010 11:21:45 PM)    
 
How to find 600 is LCM?

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