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The sum of series 3.5 7 10.5 14 . to17 terms is?
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The sum of series 3.5 7 10.5 14 . to17 terms is?
Sum of Series 3.5 7 10.5 14 to 17 terms



  • First, we need to find the common difference of the series. The common difference is the difference between any two consecutive terms in the series.

  • Here, the common difference is 3.5. We can find this by subtracting the second term, 7, from the first term, 3.5.

  • The formula to find the sum of an arithmetic series is: S = n/2 × (2a + (n-1)d), where S is the sum of the series, n is the number of terms, a is the first term, and d is the common difference.

  • Using this formula, we can find the sum of the series up to the 17th term:



S = 17/2 × (2(3.5) + (17-1)3.5)

S = 17/2 × (7 + 48.3)

S = 17/2 × 55.3

S = 470.95

Therefore, the sum of the series 3.5 7 10.5 14 to 17 terms is 470.95.
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The sum of series 3.5 7 10.5 14 . to17 terms is?
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