Algebra,
educated guesses for March Puzzlers
Mr. Math Puzzler
has come up with March questions that involve finding answers
with simple algebra and educated guesses. They should be somewhat
easier.
That should make
it possible to figure the answers without detailed calculations.
Mr. Math Puzzler
is Wayne Hesse, a math teacher at Green Park Lutheran School.
He comes up with six Math Puzzlers each month to help you
have fun with unusual math questions.
He has been helping
Young Saint Louis.com with this extra-curricular math
fun since September, 2001.
That means he's
created questions and answers to over 175 Puzzlers.
If you're ever
asked to provide a fun exercise for a games party, you could
come up with plenty of brain-teasers. You could just go to
the Past Stories tab on the home page and print out
as many Puzzlers as you'd need.
And even better,
you don't have to think up the answers. You can print out
answers just by moving ahead one month. The answers always
are published the month after the questions are asked.
Those past issues
also can help you figure out answers to new Math Puzzlers.
The past questions and answers helps you figure out how Mr.
Math Puzzler thinks.
Remember, first-time
entrants to the Math Puzzlers very seldom win. But, after
you study past questions and answers, you'll be better able
to answer the new questions.
For instance,
to check February questions and answers, just
click here.
A reminder:
These Math Puzzlers can be quite challenging, especially for
younger kids. Remember, we don't mind if you get help from
a parent or older brother or sister. In fact, you might want
to make this a family activity.
Here's how to
enter:
- Print out
the following entry form.
- Fill out your
name, address and telephone number.
- Give your
answers to the six Math Puzzlers.
- Put your completed
entry into a stamped envelope.
- Mail your
entry to:
Math Puzzler Contest
Young Saint Louis.com
231 So. Bemiston Ave., Suite 800
Clayton, MO 63105
- All entries
must be postmarked by the 15th of the month
to be eligible.
-------------Clip
here to make entry-------------
Entry
for March, 2004, Math Puzzler Contest:
Name: ___________________________________
Age: ____
Address: _____________________
School: ______________
City:_____________________,
State:______ ZIP__________
Contact phone
no.(____)____________________
The
Math Puzzlers
(March, 2004)
1. The capacity
of a ferry boat is either 48 children or 36 adults. If 20
children already are on the ferry boat, how many adults still
can get on?
Answer: _______________
2. Name all the
squares with an edge that will touch Square D when the figure
below is cut out and folded into a cube.
Answer: _____________
3. The length
of a rectangle is increased by 10 per cent and its width is
decreased by 20 per cent. What percentage more or less is
the new area compared with the original area?
Answer:
_____________
4. Find all the
two-digit numbers that give a sum of 154 when the original
number and the number obtained by reversing its digits are
added together.
Answer: _____________
5. A ball is dropped
128 feet from the roof of a building. Suppose that with each
bounce, the ball goes up exactly half its previous height.
A man is sitting at his desk on the second floor. How many
times will he see the ball (going up or down) if his eye level
is 15 feet above the ground?
Answer: _____________
6. Laura and Sam
are having lunch. Laura is paying for the lunch, but she has
only $23,92. If she wants to leave a 15 per cent tip, what
is the most she can spend on the lunch for the two of them?
Answer: _____________