Challenging Math Problems Terry Stickels

ISBN: 9780486795539

Published: October 21st 2015

Paperback

112 pages


Description

Challenging Math Problems  by  Terry Stickels

Challenging Math Problems by Terry Stickels
October 21st 2015 | Paperback | PDF, EPUB, FB2, DjVu, AUDIO, mp3, RTF | 112 pages | ISBN: 9780486795539 | 4.62 Mb

Two friends wish to meet for breakfast twice a month throughout the year. In how many ways can they choose those two days so that they never meet on consecutive days?You want to measure 30 seconds and you have two pieces of string, each of whichMoreTwo friends wish to meet for breakfast twice a month throughout the year. In how many ways can they choose those two days so that they never meet on consecutive days?You want to measure 30 seconds and you have two pieces of string, each of which burns for 40 seconds. How can you accomplish this without bending, folding, or cutting the strings?A positive whole number is divisible by 3 and also by 5.

When the number is divided by 7, the remainder is 5. What is the smallest number that could work?These are but a few of this books assembly of the most challenging puzzles imaginable ― and they require no background in higher math, just good thinking skills. Terry Stickels, a well-known puzzle-maker, has compiled 101 of some of the best and most entertaining problems ever published.

All of the challenges, which range from probability puzzles to dice games, have two things in common: each offers the Aha! moment of discovery that puzzle-solvers love, and theyre all fun. Complete solutions for all puzzles explain every detail.



Enter the sum





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