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0 votes
2.7k views
in Mathematics by (33.1k points)

The first and the last terms of an AP are 17 and 350 respectively. If the common difference is 9, how many terms are there and what is their sum?

1 Answer

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by (60.2k points)
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Best answer

Suppose there are n terms in the AP.

Hence, the required sum is 6973.

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