Problem #1
You have a red bag (where you can put 600 gram of sugar), a napkin, a box( which contains 1 kilogram and 100 gram of sugar), and a blue bag,(where you can put as much sugar as you want).
How to fill the blue bag with 1 kilogram of sugar.
Hints:
1 kilogram = 1000 grams
You can put any amount of sugar on the napkin and use it inside of any bag or the box
See solution here
Problem #2
The apartment building has 5 floors. 4 people live in this building. Each of them live on separate floor (from second to fifth). These people are entering elevator on the first floor at the same time. Elevator needs to stop on only one floor (from which all these people will go home). If a person walks down 1 floor he/she gets 1 point. If a person walks up 1 floor he/she gets 2 points. What floor elevator should stop so total number of points for all 4 people is minimal?
Problem #3
We know that 51/A - 12 is the whole number and greater than 0. What value is A?
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