The first and the last terms of an AP ar...

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 then sum?

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

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

The first and the last terms of an A.P. are 17 and 350 respectively. If the common difference is 9, then how terms are there in the A.P. ?

The first and the last terms of an A.P. are 4 and 81 respectively . If the common difference is 7, how many terms are there in the A.P. and what is their sum?

If the first and the last term is an AP are 17 and 350 respectively and the common difference is 9 , then the number of terms is .

The sum of first 10 terms and 20 terms of an AP are 120 and 440 respectively. What is the common difference?

The first and the last terms of an A.P.are 5 and 45 respectively.If the sum of all its terms is 400, find its common difference.

The first and the last terms of an AP are 7 and 49 respectively.If sum of all its terms is 420, find its common difference.

If the first and the last terms of an A.P. are -4 and 146 respectively and the sum of this A.P. is 7171 then its common difference is

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