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Which of the following is equal to value of

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Manager
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Which of the following is equal to value of [#permalink] New post 17 Apr 2006, 00:43
Which of the following is equal to value of 2^5+2^5+3^5+3^5+3^5?

a. 5^6

b. 13^5

c. 2^6+3^6

d. 2^7+3^8

e. 4^5+9^5
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 [#permalink] New post 17 Apr 2006, 01:17
Answer is C

2^6 + 3 ^6
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 [#permalink] New post 17 Apr 2006, 04:16
2^5+2^5+3^5+3^5+3^5=2^5(1+1)+3^5(1+1+1)=2^6+3^6
C it is
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Senior Manager
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 [#permalink] New post 17 Apr 2006, 07:17
C is the correct answer
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 [#permalink] New post 17 Apr 2006, 10:55
I attempted to do this problem like this:

2^5+2^5+3^5+3^5+3^5

= 2^5+2^1 + 3^5+3^1+3^1

= 2^(5+1) + 3^(5+1+1)

2^6+3^7

Can somebody explain what I did wrong? :? Thanks.
Manager
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 [#permalink] New post 17 Apr 2006, 19:49
I get it now. :lol: Hope this is right.

I attempted to do this problem like this:
2^5+2^5+3^5+3^5+3^5

2^5+2^5 + 3^5+3^5+3^5

= 2^5 (1+1) +3^5(1+1+1)

= 2^5 (2^1) + 3^5(3^1)

= 2^6 + 3^6
  [#permalink] 17 Apr 2006, 19:49
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