Solve for x: 1+4+7+......+x=590.

Asked by  | 28th Feb, 2013, 09:54: PM

Expert Answer:

The series: 1, 4, 7 and so on... forms an AP with first term as 1 and common difference (d) = 3
 

Answered by  | 1st Mar, 2013, 09:13: AM

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