For The Mathematically Inclined

For The Mathematically Inclined

Anil Saigal
09/28/2010

PROBLEM # 1

+ + + * * * * + + + + * * * + + + + ? ? *

PROBLEM #2
1/4, 0, 1, -3, 13, -51, 205, _______

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Problems from 09/16/10

PROBLEM # 1

What is the smallest integer greater than 0 that can be written entirely with zeros and ones and is evenly divisible by 225

SOLUTION

PROBLEM #2

An ant and a blind spider are on opposite corners of a cube. The ant is stationary and the spider moves at random from one corner to another along the edges only. What is the expected number of turns before the spider reaches the ant?

SOLUTION

Congratulations to Arul Prakash, who was the winner of the last set of puzzles.

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