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 10 of 12.

Djay said:   6 years ago
75*8=600 lcm.

And find option divisible by 600.

Nisha said:   8 years ago
Please tell me why we have to take LCM and HCF?

Ram said:   2 decades ago
How to find the l.c.m number the value is 600?

Darshana said:   1 decade ago
How to find the l.c.m number the value is 600?

Jyoti said:   1 decade ago
@vishnu.

Their is no need to divide by 40.

Rohir said:   1 decade ago
How that remainder come 399 please tell me?

Konika said:   1 decade ago
How we get greatest number of 4 digit 9999?

Shivni said:   5 years ago
@ Tejas Kumblar

Nice explanation. Thanks.

Ann said:   1 decade ago
How do we know whether to find lcm or hcf?

Atul said:   1 decade ago
How to devide 9999 by 600? please explain.


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