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In an A.P. I term is 0 and the last term...

In an `A.P.` `I` term is `0` and the last term is `40`. Then sum of all terms is `=……….` when `n=20`.

A

`800`

B

`60`

C

`20`

D

`400`

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UNIQUE PUBLICATION-ARITHMETIC PROGRESSION-Unique Practice Session
  1. The sequence 2,4,8,16,…..

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  2. In an A.P. I term is 0 and the last term is 40. Then sum of all terms ...

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  3. Arjun thought of adding all the multiples of 5 he learnt in class. So ...

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  4. If (1)/(2)pi, 1pi, (3)/(2)pi,……..is an A.P. d=………

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  5. Find first four terms of an A.P., whose first term is -6 and common di...

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  6. In an auditorium , if there are 20 seats in 1^(st) row, 25 in 2^(nd) r...

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  7. What is the sum of the first 10 even numbers starting with 0.

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  8. What is the sum of first 10 natural numbers.

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  9. Mother asked Jheel to eat one fruit on the first day, two on the secon...

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  10. Smith asked daddy to give Rs100 on first day and go on decreasing by R...

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  11. -10,+10,-10,+10,……………Is the sequence an A.P. ? If so, find the common ...

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  12. -4,-3,-2,………….Is the sequence an A.P. ? If so find the common differen...

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  13. Find a and d of an A.P. 5,12,19,26.

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  14. Find a and d of an A.P. 2, -2, -6,-10,………

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  15. 108,108,108,………. is an A.P.find a & d.

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  16. Find the n^(th) term of an A.P. given a=5 & d=-2.

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  17. Find the n^(th) term of an A.P. given a=-3 and d=4.

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  18. Find the n^(th) term of an A.P. Whose first term is 200 and common dif...

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  19. If first term is -1 and common difference is (-1)/(2) find the n^(th) ...

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  20. If a=3sqrt(3) and d=4sqrt(3) for an A.P. find t(n).

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