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:
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 6 of 8.
Sreeraj said:
1 decade ago
From the given question,
We can take 1.08 = 108 (1.08*100)
0.36 = 36 (0.36*100)
0.9 = 90 (0.9*100), or making the calculation easier. :)
3|108, 36, 90
|_____________
3| 36, 12, 30
|_____________
2| 12, 4, 10
|_____________
6, 2, 5
So the H.C.F is 3*3*2 = 18
At last we have to divide the H.C.F by 100 (Because earlier we multiplied all the given number with 100)
So the final answer is 18/100 = 0.18
We can take 1.08 = 108 (1.08*100)
0.36 = 36 (0.36*100)
0.9 = 90 (0.9*100), or making the calculation easier. :)
3|108, 36, 90
|_____________
3| 36, 12, 30
|_____________
2| 12, 4, 10
|_____________
6, 2, 5
So the H.C.F is 3*3*2 = 18
At last we have to divide the H.C.F by 100 (Because earlier we multiplied all the given number with 100)
So the final answer is 18/100 = 0.18
Aishu said:
1 decade ago
Raj anna thanks.
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
36 = 18*2
90 = 18*5
WE HAVE COMMON FACTOR AS 18 THEREFORE 18 WILL BE IT`S HCF
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?
and the result was not HCF it was LCM.
can u clearly show how LCM vary from HCF?
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.
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.
Sheik said:
1 decade ago
0.9 is nothing but 0.90
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......
Jaz said:
1 decade ago
Ya same doubt. Can anyone please.
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.
How you got H.C.F. Of 108, 36 and 90 is 18.
@Amit:::can you explain.
Shiv said:
1 decade ago
How to you write 0.9 is equal to 90 this is not correct?
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