Tuesday, May 29, 2012
Five young people have been babysitting to earn extra money. Each one is saving for something special. Using the clues given, figure out how much each makes per hour, how much each has earned so far, and what each is saving to buy. 1. Dylan has made the most, although he makes the least per hour. 2. Carson has worked 19 hours, 23 fewer than Wills. 3. Gray makes $4.75 and has worked 35 hours so far. She's saving for the bicycle. 4. The person saving for a computer (not Amelia or Ellis) earns $5.25 per hour and has earned $99.75 so far. 5. The one saving for the clothes is neither Elvin nor Jones. 6. Sands has worked 66 hours so far. 7. The person saving for college has worked 38 hours so far; the one saving for clothes has worked 42. Names: Amelia, Bobby, Carson, Dylan, Elvin, Last Names: Wills, Sands, Jones, Ellis, Gray Money Earned (so far): $264, $166.25, $99.75, $189, $190 $ per Hour: $4, $4.50, $4.75, $5, $5.25 Saving for: trip, bicycle, computer, college, clothes.
Wednesday, May 23, 2012
I turn polar bears white And will make you cry. I make celebrities look stupid And normal people look like celebrities. I turn pancakes brown And make your champagne bubble. If you squeeze me I’ll pop. If you look at me. You’ll pop. Can you guess the riddle.
Tuesday, May 22, 2012
Friday, May 18, 2012
Wednesday, May 16, 2012
Monday, May 14, 2012
There is a building with 100 floors. You have two identical balls. You know that there is a floor n, such that if you drop one of the balls you have from this floor it does not break, but if you drop it from any higher floor it breaks. If one ball breaks, you can use another one. What is the minimum amount of drops (trials) you have to make at different floors to be sure to find the floor n?
Wednesday, May 09, 2012
You're driving off-road in the middle of the desert when you get a flat tire. You take out the spare tire, and then remove the flat one. Unfortunately, you accidentally drop all four lug nuts (the nuts that hold the tire on) down a hole that is ten feet deep and only a few inches wide. You'll die of thirst if you can't find a way to put that spare tire on securely enough to drive out of the desert. Just using what is normally available in any car, can you come up with at least one way to solve this problem?
Tuesday, May 08, 2012
Wednesday, May 02, 2012
A painting has a rope that goes around in a loop. You can hang the painting on one nail. If you pull the nail out, the painting will fall. Can you hang the painting on two nails, so that if you pull ANY nail, the painting falls down? How about three nails?