perplexus.info :: Word Problems : Phone Keys

Phone Keys (Posted on 2021-11-11)

There are 8 keys on a standard telephone that have letters associated with them. Consider Q included with P, R and S; and Z with W, X and Y.

  1   2   3 
     ABC DEF
     
  4   5   6 
 GHI JKL MNO
 
  7   8   9 
 PQRS TUV WXYZ
  
    *   0   #

How many 8-letter words can you find that use each of these 8 keys exactly once? Using the concept, the 3-letter word KEY would be represented by 539.

See The Solution Submitted by Charlie

Rating: 3.0000 (1 votes)

Comments: ( You must be logged in to post comments.)

Subject	Author	Date
re: soln	Dej Mar	2021-11-29 06:24:05
soln	Steven Lord	2021-11-11 11:57:41

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