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Find the sum of first 45 terms of an A.P...

Find the sum of first `45` terms of an A.P. whose `8^(th)` term is `41` and `13^(th)` term is `61`.

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UNIQUE PUBLICATION-ARITHMETIC PROGRESSION-Unique Practice Session
  1. Determine the AP whose third term is 15 and differnce of 5th from 8^(t...

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  2. An A.P. consists of 40 terms . If the first and the last terms are -4 ...

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  3. Find a, b and c such that the following numbers are in AP, a, 7, b, 23...

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  4. The first term (a) and common difference (d) are given (i) Find first ...

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  5. A village has 4000 literate people in the year 2010 and this number in...

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  6. Find t(n) for following A.P., and then find 30th term of A.P. 3,8,13...

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  7. Which term of the following A.P. is 560? 2,11,20,29.......

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  8. Find the sum of last ten terms of the AP 8, 10, 12, …, 126.

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  9. Find the sum, (i) 4-(1)/(n)+4-(2)/(n)+4-(3)/(n)…………upto n terms (ii)...

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  10. Ajay sharma repays the borrowed amount of Rs 3,25,000 by paying Rs 305...

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  11. The 19th term of an AP is equal to 3 times its 6th term. If its 9th te...

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  12. Find the sum of first 45 terms of an A.P. whose 8^(th) term is 41 and ...

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  13. A man has saved Rs640 during the 1^(st) month, Rs720 in the 2^(nd) mon...

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  14. How many two digit number are divisible by 13 ? Also find their sum.

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  15. For an A.P. show that t(m+n)+t(m-n)=2tm

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  16. Check wether 301 is a term of the list of numbers 5, 11, 17, 23, .....

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  17. The 10th term and the 18th term of an A.P. are 25 and 41 respectively,...

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  18. How many two digit numbers are divisible by 4?

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  19. A mixer manufacturing company manufactured 600 mixers in 3^(rd) year a...

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  20. Anvar saves some amount every month. In first three months he saves Rs...

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