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Find the sum to 'n' terms of an A.P. who...

Find the sum to 'n' terms of an A.P. whose `7^(th)` term is 30 and `13^(th)` term is 54.

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BEYOND PUBLICATION-PROGRESSIONS-EXERCISE
  1. Find the sum of 32 terms of an A.P. whose third term is 1 and 6^(th) t...

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  2. Determine the sum of first 35 terms of an A.P. if a2=2 and a7 =22.

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  3. Find the sum to 'n' terms of an A.P. whose 7^(th) term is 30 and 13^(t...

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  4. How many terms are there in an A.P. whose first and fifth terms are -1...

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  5. Find the sum of all natural numbers between 100 and 1000 which are mul...

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  6. If the 8^(th) term of an A.P. is 31 and 15th term is 16 more than the ...

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  7. Which term of the A.P.5,15,25,… will be 130 more than its 31^(st) term...

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  8. The sum of 5^(th) and 9^(th) terms of A.P. is 72 and the sum of 7th an...

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  9. How many mulitiples of 4 lie between 10 and 250?

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  10. How many three digit numbers are divisible by 3?

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  11. Which term of the A.P. 3,10,17,…. Will be 84 more than its 13^(th) ter...

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  12. The 8th term from the end of the AP 7,10,13, ….. 184 is ………..

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  13. Find the 10^(th) term from the end of the A.P 8,10,12,….,126.

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  14. Find the sum of all 3-digit natural numbers, whch are multiples of 11?

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  15. Find the sum of all 3-digit natural numbers, which are multiples of 13...

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  16. Find the sum: 25+ 28+31+…+100.

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  17. Find the sum of the first 25 terms of an A.P. whose n^(th) term is giv...

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  18. The first and the last terms of an A.P. are 17 and 350 respectively. I...

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  19. For what value of p are 2p+1, 13,5p-3 are three consecutive terms of a...

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  20. Find 'r' and write 3 more terms of each of the following G.Ps. x/y,1...

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