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If the mean of 6 consecutive integers is 8.5, what is the pr

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If the mean of 6 consecutive integers is 8.5, what is the pr [#permalink] New post   02 Jan 2021, 02:41
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If the mean of 6 consecutive integers is 8.5, what is the product of the first and the last?


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66



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Re: If the mean of 6 consecutive integers is 8.5, what is the pr [#permalink] New post   02 Jan 2021, 08:29
six consecutive integers.

Mean = Sum of all / 6

Sum of all = 8.5 * 6 = 51

Let's take six consecutive integers as

a-3 a-2 a-1 a a+1 a+2

Sum = 6a-3 = 51

6a = 54

a = 9

So nos are

6 7 8 9 10 11

Multiplication of first and last = 11 * 6 = 66

Answer 66
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Re: If the mean of 6 consecutive integers is 8.5, what is the pr [#permalink] New post   13 Jun 2022, 00:54
Hello from the GRE Prep Club BumpBot!

Thanks to another GRE Prep Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: If the mean of 6 consecutive integers is 8.5, what is the pr [#permalink]
13 Jun 2022, 00:54
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