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. 8)
8.
The G.C.D. of 1.08, 0.36 and 0.9 is:
0.03
0.9
0.18
0.108
Answer: Option
Explanation:

Given numbers are 1.08, 0.36 and 0.90.   H.C.F. of 108, 36 and 90 is 18,

H.C.F. of given numbers = 0.18.

Discussion:
78 comments Page 1 of 8.

Amit said:   1 decade ago
This is realy helpful thanks a lot.

Priya said:   1 decade ago
I didn't understand.

How you got H.C.F. Of 108, 36 and 90 is 18.

@Amit:::can you explain.

Jaz said:   1 decade ago
Ya same doubt. Can anyone please.

Abani said:   1 decade ago
In the question the number is 0.9,but in the explanation it is 0.90,why it is so......

Sheik said:   1 decade ago
0.9 is nothing but 0.90

Mehar said:   1 decade ago
Easy ans:

Remove decimal points then it become like this way.

108,36,90,then.

108 90 108
36 36 90
--- ---- ----
72 54 18
--- ---- ----

So H.C.F is 18....means 0.18.

I think it fix your problem.

Kiran said:   1 decade ago
Mehar, can u explain why did u subtract them before calculating HCF?

and the result was not HCF it was LCM.

can u clearly show how LCM vary from HCF?

RAJJESH RAI said:   1 decade ago
108 = 18*6
36 = 18*2
90 = 18*5
WE HAVE COMMON FACTOR AS 18 THEREFORE 18 WILL BE IT`S HCF

Aishu said:   1 decade ago
Raj anna thanks.

DUA said:   1 decade ago
G.C.D-IT IS SHORT FORM OF GREATEST COMMON DIVISOR.


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