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D is harder than C (Posted on 2013-03-29) Difficulty: 4 of 5
YES, DECODING is harder than CODING.
Let's assign integer numbers to letters according to their place in the English ABC (a=1, b=2,...,z=26.)

We then "code" a given word by 2 parameters, e.g:
YES SIR⇒(49,2375)(46,3078)
NO WAY⇒(29,210)(49,575)

Once you find how the coding was done, you will understand that
a) There is no one-to-one-correspondence between the word
and the ordered couple, so STAR, ARTS and RATS produce identical couples.
b) The correct decoding of a meaningful phrase might be possible.

NOW DECODE THE FOLLOWING PHRASES
(only one 5-letter word - all other words less than that):
a. (26,100)(39,1620)(58,6900)
b. (49,2375)(28,115)(18,42)
c. (46,2760)(19,60)(61,7875)(19,60)
d. (52,3680)(18,65)(99,2794500)


See The Solution Submitted by Ady TZIDON    
Rating: 4.6667 (3 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
Solution Answer | Comment 3 of 11 |
The first number is the sum of the letters. The second number is the product of the letters.
a. Tea for two
b. Yes, we can.
c. How do you do?
d. ?


  Posted by Math Man on 2013-03-29 20:55:24
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