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# A certain drive-in movie theater has total of 17 rows of parking space

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Intern
Joined: 20 Jan 2020
Posts: 15
Re: A certain drive-in movie theater has total of 17 rows of parking space  [#permalink]

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27 Mar 2020, 11:48
We have a set of 15 consecutive integer summed by 2. We are going to calculate the last of this term to calculate the mean andmultiplicate it for 15.
Number of leap (15 -1 ) = 14
Difference between first and last term ( 14*2) = 28
1th term= 23
15th term = 51
Mean = 37
Sum of the 15 consecutive integers = 37*15= 555
Adding the 2 terms out of. The set = 555 + 10 + 21 = 596
Re: A certain drive-in movie theater has total of 17 rows of parking space   [#permalink] 27 Mar 2020, 11:48

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