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

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asked Mar 14, 2018 in Mathematics by paayal (26,720 points) 4 6 11
The first and the last term of an AP are 17 and 350 respectively. If the common difference is 9, how many terms are there and what is the sum.

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answered Mar 14, 2018 by sanjaydas (61,430 points) 5 7 7
selected Mar 15, 2018 by faiz
 
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