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. 13)
13.
| Reduce | 128352 | to its lowest terms. |
| 238368 |
Answer: Option
Explanation:
128352) 238368 ( 1
128352
---------------
110016 ) 128352 ( 1
110016
------------------
18336 ) 110016 ( 6
110016
-------
x
-------
So, H.C.F. of 128352 and 238368 = 18336.
128352 128352 ÷ 18336 7
Therefore, ------ = -------------- = --
238368 238368 ÷ 18336 13
Discussion:
59 comments Page 6 of 6.
Reeta said:
1 decade ago
Sona,
Result of 238368-128352=110016
128352-110016=18336
so
18336*7=128352
18336*13=238368
or
128352/18336=7
238368/18336=13
so ans.=7/13
Result of 238368-128352=110016
128352-110016=18336
so
18336*7=128352
18336*13=238368
or
128352/18336=7
238368/18336=13
so ans.=7/13
Sona said:
1 decade ago
Hey Mehar
Result of 238368-128352=110016 not 10016.
How can we know that - At which stage we have to stop subtracting?
Please clarify!
Result of 238368-128352=110016 not 10016.
How can we know that - At which stage we have to stop subtracting?
Please clarify!
Mehar said:
1 decade ago
Quick process:
238368- 128352=10016;128352-10061=18336;
check multiple which gives last digit of the given numbers..
So
18336*7=128352;
18336*13=238368;
ans:7/13;
We no need to multiply fully we have to check whether the last 2 digits (1st & 10th places)only.if have any confusion rise a ticket..
238368- 128352=10016;128352-10061=18336;
check multiple which gives last digit of the given numbers..
So
18336*7=128352;
18336*13=238368;
ans:7/13;
We no need to multiply fully we have to check whether the last 2 digits (1st & 10th places)only.if have any confusion rise a ticket..
Priya said:
1 decade ago
Please provide me the short cut method.
Priya said:
1 decade ago
Its too lengthy method with very much calculation. Should we leave this type of questions in competitive exam. Or any short method also available. ?
Chinmaya said:
1 decade ago
What's the quick procedure for this ?
Tony said:
1 decade ago
Is there is any other method?
Mamta said:
1 decade ago
Is the procedure is method or just trick?
Piyush said:
2 decades ago
Isnt' thr a quicker way tpo find this ans??.. because the answer shown looks to be very time consuming.
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