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Anil Saigal
07/27/2010
PROBLEM # 1 PROBLEM #2 Please send your solutions to mr.asaigal@gmail.com.
------------------------------------------------------------------------------------------------------------- Problems from 07/22/10
PROBLEM # 1
105 handshakes.
PROBLEM #2
If A(1, 2), B(4, 3) and C(6, 6) are the three vertices of a parallelogram ABCD, find the coordinates of the fourth vertex D
There is a clock that has a special way of telling the time. It does not have any hands or numbers on it, but it has a chimer.
If the time is 1 o'clock, it chimes once. If the time is 2 o'clock, it chimes twice, and so forth. The time gap between any two chimes is 4 seconds.
How many seconds would it take you to know the time, after the first chime is heard, if it is 6 o'clock?
"Dad, where had you been?" asked Ashok.
"I had been to the attic, my son," replied Dad. "And do you know what I saw there? There was a big web with 26 spiders and flies on it."
"How many spiders were there?" asked the boy with curiosity.
"Well, there were a total of 168 legs on the web," answered Dad with a smile. "Now you can find out how many spiders were there by yourself. Can't you?"
Can you help the little boy find out how many spiders were on the web in the attic?
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If there were 15 children in the class, how many total handshakes were there?
SOLUTION
(3,5).
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