Share
Number System
ReportQuestion
Please briefly explain why you feel this question should be reported .
All even numbers from 2 to 98 inclusive, except those ending 0, are multiplied together. What is the rightmost digit (the units digit) of the product?
solved
0
Campus Interview
3 years
4 Answers
1540 views
1
Answers ( 4 )
Please briefly explain why you feel this answer should be reported .
The rightmost digit = 7
Please briefly explain why you feel this answer should be reported .
from 2 to 10,even digits are 2,4,6,8 excluding 10. if they are multiplied then unit digit=4
again from 11 to 20, even digits are 12,14,16,18 excluding 20, if they are multiplied unit digit=4
proceeding in same way we get 4^10, therefore the rightmost digit=6
Please briefly explain why you feel this answer should be reported .
Why raise to 10 ?plz tell
Please briefly explain why you feel this answer should be reported .
4?