Aptitude - Numbers - Discussion
Discussion Forum : Numbers - General Questions (Q.No. 65)
65.
If the number 42573 * is exactly divisible by 72, then the minimum value of * is:
Answer: Option
Explanation:
72 = 9 x8, where 9 and 8 are co-prime.
The minimum value of x for which 73x for which 73x is divisible by 8 is, x = 6.
Sum of digits in 425736 = (4 + 2 + 5 + 7 + 3 + 6) = 27, which is divisible by 9.
Required value of * is 6.
Discussion:
17 comments Page 2 of 2.
Sathya said:
5 years ago
How 73x will came in solving x = 6? Please explain this step.
(1)
RamPavan said:
1 decade ago
Good problem and Easy for solving is also available.
M. usha said:
4 years ago
I got confused, Could anyone please explain clearly?
(3)
Nandini said:
6 years ago
How 6 will be the answer? please explain.
Koti Ch said:
10 years ago
May I know about co prime numbers?
Vinod said:
7 years ago
Why should a take 6 and 73x?
Shree said:
8 years ago
425736/72 =6.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers