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M26-17

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Status: 'When I was young, I used to admire intelligent people; as I grow older, I admire kind people."
Joined: 16 Nov 2016
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Re: M26-17 [#permalink]

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New post 31 May 2017, 06:19
I got it right but in my humble opinion, it should've been made clear if we can use the same no. again or not. Without any doubt gmatclub tests are the best!
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M26-17 [#permalink]

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New post 17 Sep 2017, 06:49
Hi,
I still have hard time understanding, why 77+77+77 can not be considered. this is set of values and what makes it clear that we can not use 7 more than 3 times ?

Just thinking out loud,considering what ever be the reason of not using more than three 7s, can we calculate 77+67+13=157 ?

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Re: M26-17 [#permalink]

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New post 17 Sep 2017, 08:42
jyotipes21@gmail.com wrote:
Hi,
I still have hard time understanding, why 77+77+77 can not be considered. this is set of values and what makes it clear that we can not use 7 more than 3 times ?

Just thinking out loud,considering what ever be the reason of not using more than three 7s, can we calculate 77+67+13=157 ?


We can use numbers from the given set only, which is {1, 3, 6, 7, 7, 7}. So, we can use 1, 3, and 6 only once and 7 thrice.
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Re: M26-17 [#permalink]

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New post 02 Oct 2017, 00:14
This is a high quality question.

Posted from my mobile device

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Re: M26-17   [#permalink] 02 Oct 2017, 00:14

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