Article View: can.schoolnet.math.sr
Article #745Interesting math
From: Joe
Date: Thu, 11 Jan 1996 00:00
Date: Thu, 11 Jan 1996 00:00
71 lines
3439 bytes
3439 bytes
1. If the sum of m and n is 3 and the sum of the squares of m and n is
6,
find the sum of the cubes of m and n.
2. Give AB = AC
AE = AD
angle of BAD = 30 degrees
Find: angle of EDC?
A
/|\
/ | \ E
/ | /\
B/___|/__\C
D
3. Sally invited 17 guests to her party. She assigned each guest a
number from 2 to 18, keeping 1 for herself. When everyone was dancing,
Sally noticed that the sum of each couple's numbers was a perfect
square. What was the number of Sally's dancing partner?
4. A man who is always in a hurry walks up an up-going escalator at
the rate of one step per second. Twenty steps brings him to the top.
The next day he goes up the same escalator at the rate of two steps
per second, reaching the top in 32 steps. How many steps are there
in the escalator?
5. If you start at the top and work your way down through the array,
each move being to an adjacent letter in the row below, how many
different paths are there when speeling the word "mathematics"?
M
A A
T T T
H H H H
E E E E E
M M M M M M
A A A A A
T T T T
I I I
C C
S
6. Littel Tommy Jones smudged his candy on the wall of the living
room one foot from the floor and six feet from each side wall. A
fly with a broken wing is standing on the opposite wall one foot
from the ceiling and six feet from each side wall. If the living room
is thirty feet long, twelve feet high, and twelve feet wide, what is
the shortest path along which the fly could walk to get from where it
is to the candy smudge?
7. Three teen-aged boys, Mick, Mel, and Marv, and two teen-aged girls,
Meg and Mavis, all tired of their regular Saturday chores, determined
to effect mutually beneficial trades. So with the consent of their
families, each arranged to do a differnet one of the other's chores
on four consecutive Saturdays. From this information and the clues
below, find the full names of the five, their regular chores, and
who did which chore on which Saturday.
a. The one whose job it is to weed his family's garden took over
the sheep dog bathing two weeks later than Task did.
b. On three consecutive Saturdays, Mel (in the order given) weeded
a garden, did Meg's chore, and filled in for Tackler.
c. Tiller chose to save the least painful for last and did his two
dog-tending jobs on the first two Saturdays.
d. On the first Saturday, three of the chores done were as follows:
Mavis cleaned a fish tank, Toiler did Tender's chore,
and Mick vacuumed a car.
e. The greyhound was exercised on consecutive Saturdays by, first,
the one whose regular chore is car-vacuuming and then by Marv.
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: f7972,3f4dadb1a88f9b06,start X-Google-Attributes: gidf7972,public From: Joe <cschen@xnet.com> Subject: Interesting math Date: 1996/01/11 Message-ID: <30F5F81B.4A39@xnet.com> X-Deja-AN: 134906648 content-type: text/plain; charset=us-ascii organization: XNet - A Full Service Internet Provider - (708) 983-6064 mime-version: 1.0 newsgroups: can.schoolnet.math.sr x-mailer: Mozilla 2.0b5 (Win95; I)