Done with your MAP test?

Try out these brain teasers! Show all your work on a sheet of paper and bring it to Mr. Munden the next time you see him in class.

EASY

Science Students

Within the BrainBashers school, the science department has three disciplines.

In total, 280 students study chemistry, 

254 students study physics and 

280 students study biology.

97 students study both chemistry and physics, 

138 students study both physics and biology, 

152 students study both chemistry and biology.

73 students study all three disciplines.

Can you determine how many students there are in the science department? The answer is well below 814.

Squares

How many squares do you see in the image below?

MEDIUM

Transporting the Animals
A man wants to transport a fox, a chicken and some corn across a river.
He has a rowboat, but it can only carry the man and one other item.
If the fox and the chicken are alone together, the fox will eat the chicken.
If the chicken and the corn are alone together, the chicken will eat the corn.

How does the man do it?

HARD

The Egg Problem

Once upon a time, and old lady went to sell her vast quantity of eggs at the local market.

When asked how many she had, she replied:

Son, I can't count past 100 but I know that.

If you divide the number of eggs by 2 there will be one egg left.
If you divide the number of eggs by 3 there will be one egg left.
If you divide the number of eggs by 4 there will be one egg left.
If you divide the number of eggs by 5 there will be one egg left.
If you divide the number of eggs by 6 there will be one egg left.
If you divide the number of eggs by 7 there will be one egg left.
If you divide the number of eggs by 8 there will be one egg left.
If you divide the number of eggs by 9 there will be one egg left.
If you divide the number of eggs by 10 there will be one egg left.

Finally. If you divide the Number of eggs by 11 there will be NO EGGS left!

How many eggs did the old lady have?