Think
"out of box" on the
February, 2002, Math Puzzlers
Mr. Math Puzzler
wants to help you increase your chances of answering correctly
all the February, 2002, Math Puzzlers. His suggestion: Think
about different ways to answer questions and then make multiple
entries.
You know by now
that Mr. Math Puzzler sometimes thinks "out of the box"
when coming up with answers. He wants to encourage you to
do the same.
For an example,
the answer to Question No. 6 in January's Puzzlers depended
on how you defined "positioned on a straight line."
Most of your answers figured the "straight line"
meant getting the satellites re-aligned along the radius of
the orbits. That's the way they were aligned in the original
illustration..
By doing that,
most of you answered 9 hours.
With the "straight
line" as a radius, Satellite X-1 had to make a complete
orbit in nine hours. Satellite Beta would go around twice
in that time and Satellite Parking, three times.
But, Mr. Math
Puzzler thought of the "straight line" as a diameter
across the whole orbit. That's how he got his re-alignment
time down to 4 1/2 hours.
His way, Satellite
X-1 would go just half way around the orbit and end up aligned
at the bottom of the orbit. Satellite Beta goes around once
and ends up on top as it shows in the question's illustration.
Satellite Parking
goes around 1 1/2 times and ends up aligned at the bottom
of the orbit, like Satellite X-1. This way, the lapsed time
is 4 1/2 hours.
In the February
Puzzlers, you may find a question that could be answered two
or more ways. If so, just print out extra entry forms. Then
you can answer a question more than one way. With two or more
entries, you can increase your chances of winning.
Mr. Math Puzzler
has another tip for you.
We've had the
Math Puzzler as a feature of Young Saint Louis.com
since last September. Since we keep past editions on file,
you can review the past questions and then check the answers
at the same time. That'll help you see how Mr. Math Puzzler
thinks "out of the box" sometimes.
To look at past
issues, click on the Past Stories tab at the top of
the home page. Then, by clicking on October, 2001, you can
see the answers to September, 2001, questions. You also can
do that with other months since then.
Then, you'll have
clues on how to out-think Mr. Puzzler in the future.
Each month, YSL.com
publishes a series of six Math Puzzlers. We make a little
competition out of it. But, the Puzzlers also are designed
for whole-family fun. The more fun you have with math, the
easier the math concepts will be.
And, if you think
of the questions in different ways, you can double your fun.
Also, if you send
in multiple entries, you increase your chances of earning
our EXTRA BONUS. Remember, all entries with six correct answers
are put into a hat and up to three will get $10 Border's book
certificates. (YSL.com wants to award book certificates.)
Submit your answers
to this February contest by using the form below. In March,
we'll publish names of those who answered all questions correctly.
We'll also include explanations of the answers. (For answers
to the January Math Puzzlers, including the tough Question
No. 6, click here.)
A reminder:
We've made these Math Puzzlers quite challenging, especially
for younger kids. But, we don't mind if you solicit 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
7733 Forsyth Blvd., Suite 350
Clayton, MO 63105
- All entries
must be postmarked by the 15th of the month to be eligible
for a book prize.
--------------------
Clip here to make entry --------------------
Entry
for February, 2002, Math Puzzler Contest:
Name: ________________________________________
Address: ______________________________________
City:_____________________,
State:______ ZIP______
Contact phone
no.(____)____________________
The
Math Puzzlers
(February, 2002)
1. Which is larger:
one-half times one-half of a dozen dozen or one-half dozen
halved and cubed?
Answer:___________
2. If two gallons
of paint are required to cover all the faces of one cube,
how many gallons will be required to cover all exposed
surfaces of this figure, including the faces on the bottom.
(All cubes are shown; there are no hidden cubes.)

Answer:___________
3. You walk into
a room where there are three boxes. One is marked "gold;"
another marked "silver" and the third marked "gold
& silver." You are told that all three labels are
wrong. If you can figure out the correct contents of each
box by looking at the contents of only one box, you can have
all the gold and silver you can carry out of the room. How
do you proceed?
Answer:___________
4. A local tennis
tournament has 128 entrants for its singles competition. How
many total matches will be needed to be played, including
the championship match, to determine the champion?
Answer:___________
5. What size square
has a perimeter that is equal (in number only) to its area?
Answer:___________
6. Five friends
are going to the movies. When they arrive, there are only
six seats together left in the theater. The manager will let
all five friends in for free if one of them can tell him how
many different seating arrangements are possible for five
people with six empty seats. All five were let in free. What
was their answer?
Answer:__________