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. 16)
16.
The H.C.F. of two numbers is 11 and their L.C.M. is 7700. If one of the numbers is 275, then the other is:
Answer: Option
Explanation:
| Other number = |  |
11 x 7700 |  |
= 308. |
| 275 |
Discussion:
21 comments Page 1 of 3.
Manshi said:
4 years ago
There is a formula for this,
HCF * LCM = first no * second no.
HCF * LCM = first no * second no.
(7)
Chaitanya said:
5 years ago
Their is a formula i.e,
a*b=HCF*LCM.
here they have given one number i.e275 so u can take a=275 or b=275.
Hence substitute in the above formula,
a*275=11*7700,
a=11*7700/275,
a=308.
a*b=HCF*LCM.
here they have given one number i.e275 so u can take a=275 or b=275.
Hence substitute in the above formula,
a*275=11*7700,
a=11*7700/275,
a=308.
(3)
Sougandhika said:
7 years ago
Why we can't do like this 11a*11b=7700?
(3)
Sampath said:
2 years ago
Thanks for explaining @kush.
(2)
Maddy said:
8 years ago
The numbers are 11x, 11y.
LCM of two numbers x * 11* y
Therefore x * 11 * y = 7700.
11x = 275,
ie., 275 * y = 7700,
y = 28,
The other number is 11*y => 11*28 => 308.
LCM of two numbers x * 11* y
Therefore x * 11 * y = 7700.
11x = 275,
ie., 275 * y = 7700,
y = 28,
The other number is 11*y => 11*28 => 308.
(2)
Raju said:
1 decade ago
IF only HCF & LCM is given then how to find numbers.
eg: If 24 & 720 is HCF & LCM of TWO numbers respectively,find the numbers
eg: If 24 & 720 is HCF & LCM of TWO numbers respectively,find the numbers
(1)
K.mauri said:
7 years ago
What is the HFC of 77 and 275?
(1)
Jatin said:
1 decade ago
This is a right formula to write the answer.
Pavan said:
7 years ago
Its formula is;
The product of two numbers=H.C.F * L.C.M.
The product of two numbers=H.C.F * L.C.M.
Pretty said:
8 years ago
Thanks for the explanation.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers