meet every other child in the class. the teacher said, "When you meet, please shake hands and introduce yourself by name."
if there were 12 children in the class, how many total handshakes were there?
2007-01-19 07:29:51 · 7 answers · asked by Future doctor! 1 in Science & Mathematics ➔ Mathematics
U should take 11+10+9+8+7+6+5+4+3+2+1. This is the correct method for finding out this type of questions. The answer is 66!
2007-01-19 11:42:23 · answer #1 · answered by Misumi Nagisa fan xD 2 · 0⤊ 0⤋
Ans: 66
Just add up the numbers, assuming each number represent each child had a new handshake.
11 10 9 8 7 6 5 4 3 2 1 0
2007-01-19 15:42:35 · answer #2 · answered by wind_liao 2 · 0⤊ 0⤋
This is the best way to solve this,
first person shakes 11 other hands
second person shakes 10(since already shook first person)
third person shakes 9, etc, so
11+10+9+8+7+6+5+4+3+2+1
2007-01-19 15:34:54 · answer #3 · answered by leo 6 · 1⤊ 0⤋
Simplify the problem;
Take one child,
How many handshakes did that child make?
Did all the children make the same number of handshakes?
If there were 2 cildren, How many handshakes would have been made?
2007-01-19 15:34:27 · answer #4 · answered by RichardPaulHall 4 · 1⤊ 1⤋
65
2007-01-19 15:34:08 · answer #5 · answered by DO 2011 2 · 0⤊ 2⤋
if one student shakes hand with the others than that would mean each student shakes hands with 11 other students. To find the total i would say multiply....If that is wrong..welps sry..
2007-01-19 15:38:02 · answer #6 · answered by booger 2 · 0⤊ 2⤋
66
don't ask me how i got that, i did it in my head
i think its right
2007-01-19 15:34:30 · answer #7 · answered by thuglife 5 · 0⤊ 1⤋