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 July 4th, 2010, 10:41 AM #1 Newbie   Joined: Jul 2010 Posts: 1 Thanks: 0 What am I buying Hi my daughter's math teacher has set a competition! She reckons it's so easy when you find out what it is! The question is what am I buying 1 costs £1.50 12 costs £3.00 and 136 cost £4.50 I haven't a clue many thanks chris
July 4th, 2010, 11:03 AM   #2
Math Team

Joined: Dec 2006
From: Lexington, MA

Posts: 3,267
Thanks: 408

Hello, Chris!

This is a classic riddle . . .

Quote:
 My daughter's math teacher has set a competition! She reckons it's so easy when you find out what it is! The question is: what am i buying? [color=beige]. . [/color]1 costs $1.50 [color=beige]. . [/color]12 costs$3.00 [color=beige]. . [/color]136 cost $4.50 Answer: house numbers (at$1.50 per digit).

 July 4th, 2010, 11:13 AM #3 Global Moderator     Joined: Nov 2009 From: Northwest Arkansas Posts: 2,766 Thanks: 4 Re: What am I buying (this is) nothing like doing calculus on a holiday!

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