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. 22)
22.
Three numbers which are co-prime to each other are such that the product of the first two is 551 and that of the last two is 1073. The sum of the three numbers is:
Answer: Option
Explanation:
Since the numbers are co-prime, they contain only 1 as the common factor.
Also, the given two products have the middle number in common.
So, middle number = H.C.F. of 551 and 1073 = 29;
| First number = |  |
551 |  |
= 19; Third number = | |
1073 | |
= 37. |
| 29 | 29 |
Required sum = (19 + 29 + 37) = 85.
Discussion:
53 comments Page 3 of 6.
Anjali said:
1 decade ago
I didn't understand this question. Please help me.
Dinu said:
7 years ago
@Jyoti.
30-1 = 29.
So,
80+5=85.
30-1 = 29.
So,
80+5=85.
Abhoi said:
7 years ago
Thanks @Asutosh.
Tanu said:
7 years ago
Why we take HCF why not LCM? Please explain me.
Ayush said:
3 months ago
Agree C is the correct answer.
Kalpit said:
7 years ago
Good explanatiion, Thanks @Uttam.
Animo said:
6 years ago
Thanks @Safeer.
Sarang Parmar said:
4 years ago
Thanks all.
Sujeeth said:
1 decade ago
Explain how 29 came?
Vishnu said:
1 decade ago
Awesome way of explaining :-)
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