You have 20 pounds of flour that must be distributed into 10 sacks of 2 pounds each.
At your disposal is a scale, and two weights: a 5 pound one and a 9 pound one.
How can you complete this job in only 9 weighings?
(In reply to
Solution by Gautam)
Some typing mistakes with kgs instead of pounds, and 'Repeat this procedure' here means use the 2pound bag that we obtain, as a weight in one arm of the scale and go on filling the sacs in other arm one after another till scales are balanced. Actual 5 and 9 pounds weight can be used just once.
sorry....
|
Posted by Gautam
on 2003-01-20 22:38:30 |