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Between 1 and 31, m numbers have been in...

Between 1 and 31, m numbers have been inserted in such a way that the resulting sequence is an A.P. and the ratio of `7^(th)` and `(m-1)^(th)` numbers in 5:9. Find the value of m.

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A N EXCEL PUBLICATION-SEQUENCES AND SERIES-QUESTION BANK
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  2. If (a^n+b^n)/(a^(n-1)+b^(n-1)) is the A.M. between a and b, find the v...

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  3. Between 1 and 31, m numbers have been inserted in such a way that the ...

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  5. The difference between any two consecutive interior angles of a polygo...

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  7. The n^(th) term of a sequence is given by an=4n+7 Is the sequence an A...

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  8. The n^(th) term of a sequence is given by an=4n+7 Is the sequence an A...

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  9. Consider a sequence whose sum to n terms is given by Sn=2n^2+4n Find a...

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  10. Consider a sequence whose sum to n terms is given by Sn=2n^2+4n Is the...

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  11. Find the n^(th) term of the A.P 84, 80,76,.....

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  12. If an is the n^(th) term of an A.P whose first term is a and common di...

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  13. Prove that the number of terms in the A.P. 3,6,9,….111 is 37

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  14. Find the number of natural numbers between 1 and 100 which are divisib...

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  15. Find the sum of natural numbers between 1 and 100 which are divisible ...

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  16. Suppose that the 6^(th) and 17^(th) terms of an A.P. are 19 and 41 res...

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  17. The 6^(th) and 17^(th) terms of an A.P are 19 and 41 respectively, fin...

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  18. Suppose that the first and the 5^(th) terms of an A.P. are-14 and 2 re...

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  19. Suppose that the first and the 5^(th) terms of an A.P. are-14 and 2 re...

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  20. If a is the first term and d is the common difference of an A.P, what ...

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