how many odd 3-digit Nos can write in which 5 is not in unit digit?
hundreds digit: 1-9 (9 ways)
tens digit: 0-9 (10 ways)
units digit: 1,3,7,9 (4 ways)
total: 9*10*4= 360
I want to know whether this is correct?
3 digit No.s
This topic has expert replies
- cans
- Legendary Member
- Posts: 1309
- Joined: Mon Apr 04, 2011 5:34 am
- Location: India
- Thanked: 310 times
- Followed by:123 members
- GMAT Score:750
correct
If my post helped you- let me know by pushing the thanks button
Contact me about long distance tutoring!
[email protected]
Cans!!
Contact me about long distance tutoring!
[email protected]
Cans!!