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The 7th term of an A.P. is zero. Prove t...

The 7th term of an A.P. is zero. Prove that 25th term is twice the 16th term.

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MBD-ARITHMETIC PROGRESSION-EXERCISE
  1. How many numbers between 100 and 500 are exactly divisible by 7 ?

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  2. For what value of n, the nth term of the series 9, 7, 5....and 15, 12,...

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  3. The 7th term of an A.P. is zero. Prove that 25th term is twice the 16t...

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  4. Find the 20th term from the end of the following arithmetic progressio...

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  5. Find the 20th term from the end of the following arithmetic progressio...

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  6. How many numbers of two digits are divisible by 6 ?

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  7. Which term of the sequence 24, 23 1/4, 22 1/2, 21 3/4, ….. is the firs...

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  8. How many terms are there in the A.P. 3, 7, 11..... 407 ? Also find its...

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  9. Find the 12^(th) term from the end of the following A.P. ,- 3, 8, 13,…...

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  10. Find the 12^(th) term from the end of the following A.P. ,- 1, 4, 7, ...

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  11. The third term of an A.P. is 25 and the tenth term is -3. Find the fir...

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  12. Determine the 2nd term of an A.P. whose 6^(th) term is 12 and 8^(th) ...

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  13. The 4th term of an A.P. is equal to 3 times the first term and 7^(th) ...

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  14. How many number of two digits are divisible by 7 ?

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  15. How many numbers between 10 and 200 are exactly divisible by 7 ?

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  16. Prove that a - 5b, a - b and a + 3b are consecutive term of an A.P.

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  17. Which term of the A.P. 3, 5, 7, .... is 43?

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  18. Which term of the A.P 2, 8, 14, .... will be 126 more than its 15th te...

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  19. Find the common difference of the A.P. for which 18^(th) term is 3 mor...

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  20. If six times the sixth term of an A.P. is equal to nine times the nint...

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