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#1 2017-02-08 09:57:34

Muhammad
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بِسمِ اللَّهِ الرَّحمٰنِ الرَّحيمِ
From: Sahiwal Division
Registered: 2012-03-22
Posts: 22,124
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Which term of the series 5, 8, 11, 14,...is 320?

Aptitude Quizzes Mathematics Aptitude Test

Question:
Which term of the series 5, 8, 11, 14,...is 320?

Option A):
105th
Option B):
104th
Option C):
64th
Option D):
106th

Correct Answer is Option D):
106th

Explanation:
Clearly, 5+3 = 8, 8+3 = 11, 11+3 =l4 So, the series is an A.P. in which a = 5 and d = 3. Let the number of terms be n. Then 320 = 5+(n-1)x3 or (n- 1) = 105 or n= 106.


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2017-02-08 09:57:34

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Re: Which term of the series 5, 8, 11, 14,...is 320?



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