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 1 of 8.
Jijuu said:
2 years ago
GCD (Greatest Common Divisor) is just another term for HCF.
Just turn the given numbers 1.08, 0.36, 0.9 into 108/100, 36/100, 90/100
And find the HCF of 108, 36, 90 which is equal to 18.
And divide this answer 18 by 100,
We get 0.18.
Just turn the given numbers 1.08, 0.36, 0.9 into 108/100, 36/100, 90/100
And find the HCF of 108, 36, 90 which is equal to 18.
And divide this answer 18 by 100,
We get 0.18.
(25)
Vinay kumar reddy said:
2 years ago
0.9 value is greater than 0.18 and it is a common divisor for 1.08, 0.36 and 0.9.
So, the answer should be 0.9 right?
So, the answer should be 0.9 right?
(20)
Viijay said:
4 years ago
Convert them into fractions:
i.e:108/100,36/100,90/100.
HCF of fractions: HCF of numerator/LCM of denominator;
HCF(108,36,90)/LCM(100,100,100),
= 18/100,
= 0.18.
Hope this is helpful.
i.e:108/100,36/100,90/100.
HCF of fractions: HCF of numerator/LCM of denominator;
HCF(108,36,90)/LCM(100,100,100),
= 18/100,
= 0.18.
Hope this is helpful.
(13)
Jeevan kumar vanum said:
3 years ago
Firstly, do subtraction from the first two numbers (108 - 36 = 72) .
Next, do subtraction of next two numbers(36-90=54)"- sign have no value".
next, subtract first and last numbers(108-90).
Then, subtrac the first Answers(72 - 52 = 18).
So, the answer is 18.
Next, do subtraction of next two numbers(36-90=54)"- sign have no value".
next, subtract first and last numbers(108-90).
Then, subtrac the first Answers(72 - 52 = 18).
So, the answer is 18.
(10)
NandiniSidharth said:
3 years ago
@All.
Here we want to know if 0.9 is the HCF or 0.18 is.
I think both the numbers are found to be factors of 0.9, 1.08 and 0.36. But since we need the HCF (Highest common factor), the highest value among them should be 0.9 between 0.9 and 0.18.
Hence I think 0.9 is the highest common factor of 0.9, 1.08 and 0.36.
Correct me if wrong, please.
Here we want to know if 0.9 is the HCF or 0.18 is.
I think both the numbers are found to be factors of 0.9, 1.08 and 0.36. But since we need the HCF (Highest common factor), the highest value among them should be 0.9 between 0.9 and 0.18.
Hence I think 0.9 is the highest common factor of 0.9, 1.08 and 0.36.
Correct me if wrong, please.
(5)
Pinky said:
5 years ago
How did you get HCF as 18? please explain.
(5)
Sarthak said:
9 months ago
if you convert 0.9 as 9/10 then 0.18 is not the answer and if you convert 0.9 as 9/100 then you get 18 as 0.18.
And between both numbers greater is 0.9 as you are finding the gcd.
And between both numbers greater is 0.9 as you are finding the gcd.
(4)
Sudeep sapkota said:
11 months ago
@Vinay Kumar Reddy
0.9 value is greater than 0.18 and it is a common divisor for 1.08, 0.36 and 0.9.
So, the answer should be 0.9 right?
No, if you divide 0.36/0.9 = 0.4.
ie, not a whole number which means it not divisible by 0.9.
0.9 value is greater than 0.18 and it is a common divisor for 1.08, 0.36 and 0.9.
So, the answer should be 0.9 right?
No, if you divide 0.36/0.9 = 0.4.
ie, not a whole number which means it not divisible by 0.9.
(3)
DEV NANDAN said:
4 years ago
Multiplay theses all numbers.
(1.80, 0.36,0.9)by 100. It Will reduce your risk!
So we got 108 , 36 , 90.
Then find the GCD (HCF).
HCF of these three = 18.
Divide 18 by 100 (at first we multiplied by 100).
18÷100= 0.18.
Hope you understood.
(1.80, 0.36,0.9)by 100. It Will reduce your risk!
So we got 108 , 36 , 90.
Then find the GCD (HCF).
HCF of these three = 18.
Divide 18 by 100 (at first we multiplied by 100).
18÷100= 0.18.
Hope you understood.
(3)
Damini Thandele said:
7 years ago
The answer is 0.18 and not 0.09 because first, you're supposed to reduce the fractions to their simplest forms i.e., remove all the common factors between the numerator and denominator and then apply the formula. So,
1.08 = 108/100 = 27/25,
0.36 = 36/100 = 9/25,
0.9 = 9/10,
HCF (27, 9, 9) = 9 and,
LCM (25, 25, 10) = 50.
Therefore, the answer is 9/50 = 0.18.
1.08 = 108/100 = 27/25,
0.36 = 36/100 = 9/25,
0.9 = 9/10,
HCF (27, 9, 9) = 9 and,
LCM (25, 25, 10) = 50.
Therefore, the answer is 9/50 = 0.18.
(3)
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