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The first and last terms of an AP are 17...

The first and last terms of an AP are 17 and 350 respectively.If the common difference is 9,how many terms are there and what is their sum?

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R G PUBLICATION-ARITHMETIC PROGRESSION-EXERCISE
  1. How many terms of the AP:9,17,25,….. Must be taken to give a sum of 6...

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  2. The first term of an AP is 5,the last term is 45 and the sum is 400.Fi...

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  3. The first and last terms of an AP are 17 and 350 respectively.If the c...

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  4. Find the sum of first 22 terms of an AP in which d=7 and 22nd terms is...

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  5. Find the sum of first 51 terms of an AP whose second and third terms a...

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  6. If the sum of 7 terms of an AP is 49 and that of 17 terms is 289,find ...

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  7. Show that a1,a2,…..an,..form an AP where an is defined as below:(i) an...

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  8. Show that a1,a2,…..an,..form an AP where an is defined as below:(i) an...

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  9. If the sum of the first n terms of an AP is 4n-n^2,what is the first t...

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  10. Find the sum of the first 40 positive integers divisible by 6.

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  11. Find the sum of the first 15 muliples of 8.

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  12. Find the sum of all the odd numbers between 0 and 50.

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  13. A contract of construction job specifies a penalty for delay of comple...

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  14. A sum of ₹700 is to be used to given seven cash prizes to students of ...

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  15. In a school,students thought of planting tress in and around the schoo...

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  16. A spiral is made up of successive semicircles,with centers alternately...

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  17. 200 logs are stacked in the following maner:20 logs in the bottom row,...

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  18. In a potato race a bucket is placed at the starting point which is 5 m...

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  19. Which term of the AP:121,117,113,….,is its first negative term?

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  20. The sum of the third and the seventh terms of an AP is 6 and their pro...

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