Author |
Topic: Hour glasses (Read 482 times) |
|
Jen13313
Guest
|
TEXT TEXT TEXT TEXT TEXT TEXT TEXT TEXT TEXT TEXT TEXT TEXT TEXT TEXT [color=LimeGreen][/color]
Hour Glasses:
you use the 11 minute one then count the next four minutes for yourself!!
|
|
 IP Logged |
|
|
|
Mayank
Newbie
Posts: 18
|
 |
Re: Hour glasses
« Reply #1 on: Oct 13th, 2004, 9:10am » |
 Quote  Modify
|
The answer: (dont know if this has been posted before)(was too easy, so it must have been posted)
Lets call 7min hourglass as A and 11 mins Hourglass as B
1. Flip A and B to start the time count on both Hourglasses.
2. After 7 mins A will be over, flip it.
3. After 11 mins B will be over an A would have rerun for 4 more mins.
4. Flip A again at this moment and the when its over you would have counted exactly 15 mins (7 + 4 + 4)
|
|
IP Logged |
|
|
|
TenaliRaman
Uberpuzzler
I am no special. I am only passionately curious.
Gender: 
Posts: 1001
|
|
Re: Hour glasses
« Reply #2 on: Oct 14th, 2004, 11:00am » |
Quote Modify
|
Use the search facility given and search for hourglass and u will end up with a few threads discussing this answer ...
|
|
IP Logged |
Self discovery comes when a man measures himself against an obstacle - Antoine de Saint Exupery
|
|
|
|
RIDDLES SITE
WRITE MATH!
Home 
Help 
Search 
Members 
Login 
Register
Reply
Notify of replies
Send Topic
Print
Remove