Two Pencils
Math brain teasers require computations to solve.
Karin has two pencils. One is a good one, and one is a cheap one. The good pencil cost $1.00 more than the cheap one. Karin spent $1.10 for both pencils. How much did her cheap pencil cost?
Answer
Five cents. The expensive pencil cost $1.05. You may have thought the answer was 10 cents, but that does not meet the requirement of the expensive pencil costing $1.00 MORE than the cheap pencil. If the cheap pencil cost 10 cents, the expensive pencil would only cost 90 cents more.
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Comments
Shawnheyhey123
Dec 09, 2005
 1: I'm the first message! YEAH!!!!!
2: All you need to figure that problem out is common sense.
3: SUPER EASY!!!!!! 
stephiesd
Dec 15, 2005
 there was a problem like this in my algebra book about popcorn costing $1 more than the bag. i was the only person who got it right. i was also the youngest person in the class. 
cms271828
Jan 22, 2006
 These problems are easy and boring, just basic simultaneous equations.
Can someone post some interesting puzzles on here 
TehIgnored
Mar 02, 2006
 what was the calculator for..??

jj_is_cool
Mar 29, 2006
 if it is math,. there is always a calculator. n nm nhn bhh h hn n hj hm 
calmsavior
Apr 24, 2006
 pretty easy but cool 
spazzyjazzy93
May 21, 2006
 ha ha that was good
am i the only one that got this wrong? 
elu93
Nov 07, 2006
 Wow, i acutally got it! I never realized listening in class would come in handy... 
Dishhead5
Dec 17, 2006
 lol lol lol im young... less than 13 and i do 4unit maths 
redhead_babe15
Dec 29, 2006
 that was easy, but it was good. some people i know would have said 10 cents. 
hersheyugget
Mar 29, 2007
 easy heres the forula:
let x=cheap pencil
letx+1.00= good pencil
x+(x+1.00)=1.10
2x+1.00=1.10
2x=.10
x=.05 
hersheyugget
Mar 29, 2007
 *formula 
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