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. 24)
24.
Which of the following fraction is the largest ?
Answer: Option
Explanation:
L.C.M. of 8, 16, 40 and 80 = 80.
| 7 | = | 70 | ; | 13 | = | 65 | ; | 31 | = | 62 |
| 8 | 80 | 16 | 80 | 40 | 80 |
| Since, | 70 | > | 65 | > | 63 | > | 62 | , so | 7 | > | 13 | > | 63 | > | 31 |
| 80 | 80 | 80 | 80 | 8 | 16 | 80 | 40 |
| So, | 7 | is the largest. |
| 8 |
Discussion:
49 comments Page 1 of 5.
Vijaya said:
1 decade ago
Easy way is
7/8=0.875
13/16=0.8125
31/40=0.775
63/80=0.7875
by this we can easily say dat 7/8 is the largest fraction of them.
7/8=0.875
13/16=0.8125
31/40=0.775
63/80=0.7875
by this we can easily say dat 7/8 is the largest fraction of them.
Prashant pandey said:
1 decade ago
Yes vidya is right.
Nizamuddin said:
1 decade ago
No Prashant. Vidya is not correct to find the answer. Because you have to calculate all the possible values to retreive the answer. This is long process too rather than the problem explained in the beginning.
Keerthana said:
1 decade ago
What is explained in the problem is correct.
Hamsa said:
1 decade ago
How LCM value of 4, 16, 40 and 80 = 80 ?
Praveen said:
1 decade ago
Its right.
Jyoti mehta said:
1 decade ago
Why we multiply 7/8 to 10 ,13/16 to 5 and 31/40 to 2 ?
Power star pawan kalyan said:
1 decade ago
@Jyoti Mehta
We first find the lcm of the given numbers...7/8,13/16,31/40,63/80
then We'll get that value=80
So.. there goes the process and you'll get the above result...;)
We first find the lcm of the given numbers...7/8,13/16,31/40,63/80
then We'll get that value=80
So.. there goes the process and you'll get the above result...;)
Rohit said:
1 decade ago
The enswer explained is corect and a time saver too.
Ashok said:
1 decade ago
This logic is easy to find the answer & time saving too.
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