Monday, July 20, 2015

Brain Teaser for 7/20/2015

In order to win a free laptop computer, students had to guess the exact numbers of gumballs in a jar. The students guessed 45, 41, 55, 50, and 43, but nobody won. The guesses were off by 3, 7, 5, 7, and 2 (given in no particular order). From this information, can you determine the number of gumballs in the jar?
Slingo Lovers! We have your game.....

1 comment:

Anonymous said...

48. If two of the guess were both off by 7, then they were either the same guess, or 14 away from each other. Since no two guesses were the same, the two numbers must be 14 away from each other. 41 and 55 are 14 away so the answer is 48. (41+7 and 55-7).