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There are 37 terms in an A.P., the sum o...

There are 37 terms in an A.P., the sum of three terms placed exctly at the middle is 225 and the sum of last three is 429. Write the A.P.

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The correct Answer is:
i.e., 3,7,11,15,…….., 147
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An AP consists of 37 terms. The sum of the three middle most terms is 225 and the sum of the last three terms is 429. Find the AP.

An AP consists of 37 terms.The sum of the three middle most terms is 225 and the sum of the last three terms is 429. Find the AP

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An AP consists of 45 terms. The sum of the three middle most terms is 546 and the sum of the last three terms is 1050. Find the AP.

The sum of the first five terms of an A.P. and the sum of the first seven terms of the same A.P. is 167. If the sum of first 10 terms of this A.P. is 235, find the sum of its first twenty terms.

In an A.P of 99terms,the sum of all the odd- numbered terms is 2550. Then find the sum of all the 99 terms of the A.P.

The sum of three consecutive terms of an A.P. is 9 and the sum of their squares is 35. Find the terms.

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TARGET PUBLICATION-ARITHMETIC PROGRESSION -PRACTICE SET 3.5
  1. For an given A.P., t7 = 4, d = -4 then a =

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  2. For an given A.P., a = 3.5, d= 0, n = 101 then tn = …. .

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  3. In an A.P., first two terms are -3,4 then 21^(st) term is ……..

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  4. If for an A.P.,d=5, then t(18)-t(13)=….

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  5. Sum of first five multiples of 3 is ………

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  6. 15,10,5,……. In this A.P. the sum of first 10 terms is ………

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  7. In an A.P., 1^(st) terms is 1 and the last term is 20. The sum of all ...

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  8. Find the fourth term from the end in an A.P. -11, -8,-5,…49

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  9. In an A.P. the 10th term is 46. The sun of the 5th and 7th terms is 52...

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  10. The A.P. in which 4^(th)term -15 and 9^(th) term is -30. Find the sum ...

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  11. Two A.P's are given 9,7,5..and 24,21,18,….If n^(th)term of both the pr...

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  12. If sum of the 3rd and the 8th terms of an AP is 7 and the sum of the 7...

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  13. In an A.P. the first term is -5 and last term is 45. If sum of all num...

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  14. Sum of 1 to n natural numbers is 36, then find the value of n.

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  15. Divide 207 in three parts , such that all parts are in A. P. and produ...

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  16. There are 37 terms in an A.P., the sum of three terms placed exctly at...

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  17. If the first term of an A.P. is a, the second term of b and the last t...

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  18. The sum of first P terms of an A.P. is equal to the sum of its first Q...

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  19. If m times the mth term of an A.P. is equal to n times its nth term , ...

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  20. Rs. 1000 is deposited at 10 per cent simple interest. Check if the int...

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