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## ** and ++

Math brain teasers require computations to solve.

 Puzzle ID: #30302 Fun: (2.32) Difficulty: (2.74) Category: Math Submitted By: mercenary007

If 3**5 = 27 but 5**3 = 35

4++8 = 20 but 8++4 = 16

Then what is the result of (8**7)++9?

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 terrique May 06, 2006 i am first to add a comment mercenary!!! anyways love this teaser was challenging and dealt with numbers... but i didnt get it maybe next time cms271828 May 06, 2006 I got it without looking at the answer!! Basically I was looking for a 9 to make 3 * 9 =27, so I tried adding 4 to the last number, and this worked for the other ** too. Its slightly different for the ++, it only seems to work if you add the second number on again. Good puzzle blagh May 11, 2006 To paraphrase Ford Prefect, I didn't stand a whelks chance in a supernova goblu91 Jun 02, 2006 Got it without even looking at the answer !!! Cool one and keep them coming !! Urs lovingly ! global mmmcla01 Jun 28, 2006 I got the rule for the ++, but I couldn't figure out the one for **. I realized that 3*9 was 27, but I never thought to add four to the five...oh, well...maybe next time!