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Find the 20^(t h)term from the last term...

Find the `20^(t h)`term from the last term of the AP : 3, 8, 13, . . , 253.

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Find the 20^(th) term from the last term of the A.P.: 3,8,13, ….. 253 .

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CBSE COMPLEMENTARY MATERIAL-ARITHMETIC PROGRESSION -SHORT ANSWER TYPE QUESTIONS-I
  1. Is 144 a term of the A.P. 3,7,11,…………? Justify your answer.

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  2. What is 20th term from the end of the AP 3, 8, 13, …, 253?

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  3. Which term of the arithmetic progression 5,\ 15 ,\ 25 ,\ dot will b...

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  4. The first term, common difference and last term of an A.P. are 12,6 an...

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  5. Find the sum of the first 15 multiples of 8

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  6. In which of the following situations, the sequence formed will form an...

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  7. Find the sum of even positive integers between 1 and 200.

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  8. If 4m+8, 2m^(2) + 3m + 6, 3m^(2) + 4m+4 are three consecutive terms of...

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  9. How many terms of the A.P. 22,20,18………..should be taken so that their ...

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  10. If 10 times of 10th term is equal to 20 times of 20th term of an A.P. ...

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  11. Find the middle term of the A.P. 6, 13 , 20 , 216.

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  12. Is -150 a term of the A.P. 11 ,\ 8,\ 5,\ 2,\ ?

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  13. Find how many two-digit numbers are divisible by 6.

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  14. If 1/(x+2), 1/(x+3) and 1/(x+5) are in A.P. find x

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  15. Find the middle term of an A.P. -6, -2, 2,……….58.

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  16. In an A.P. find S(n) where a(n) = 5n-1. Hence find the sum of the firs...

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  17. Which term of A.P. 3,7,11,15,….. Is 79? Also find the sum 3+7+11+…..+7...

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  18. Which term of the A.P. 121, 117, 113,….. Is the first negative terms ?

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  19. Find the 20^(t h)term from the last term of the AP : 3, 8, 13, . . , ...

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