### Brain Teasers

# Two Pencils

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.Hide Answer Show Answer

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## Comments

1: I'm the first message! YEAH!!!!!

2: All you need to figure that problem out is common sense.

3: SUPER EASY!!!!!!

2: All you need to figure that problem out is common sense.

3: SUPER EASY!!!!!!

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.

These problems are easy and boring, just basic simultaneous equations.

Can someone post some interesting puzzles on here

Can someone post some interesting puzzles on here

what was the calculator for..??

if it is math,. there is always a calculator. n nm nhn bhh h hn n hj hm

pretty easy but cool

ha ha that was good

am i the only one that got this wrong?

am i the only one that got this wrong?

Wow, i acutally got it! I never realized listening in class would come in handy...

lol lol lol im young... less than 13 and i do 4-unit maths

that was easy, but it was good. some people i know would have said 10 cents.

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

let x=cheap pencil

letx+1.00= good pencil

x+(x+1.00)=1.10

2x+1.00=1.10

2x=.10

x=.05

*formula

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