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How many terms of the series : 93+90+87+...

How many terms of the series : 93+90+87+84+….. Will amount to 975 ?

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n=13 or 50
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MAHAVEER PUBLICATION-SERIES-QUESTION BANK
  1. Find 11^(th) term in 09,17,25,33,…..

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  2. How many terms of the A.P. -6,-(11)/(2),-5… are needed to give the sum...

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  3. How many terms of the series : 93+90+87+84+….. Will amount to 975 ?

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  4. Find four arithmetic mean between 3 and 23 ?

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  5. Insert two arithmetic mean between 16 and 22.

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  6. Insert three arithmetic mean (AM) between 1 and 1/16.

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  7. Insert four arithmetic mean (AM) between 4 and 19.

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  8. Insert three arithmetic mean (AM) between 6 and 18.

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  9. Is 292 a term of the A.P. series 1,4,7,10,…..? Explain.

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  10. In an A.P the 1^(st) term is 2sqrt2 and the 13^(th) term is 8sqrt2. ...

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  11. The 12^(th) term and 15^(th) term of an AP are 68 and 86 respectively....

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  12. If A.M. and GM. of two positive numbers a and b are 10 and 8, respe...

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  13. Find the sum of first n terms and the sum of first 5 terms of the geo...

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  14. Find the sum of the sequence 7, 77, 777, 7777, . . . to n terms.

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  15. How many numbers divisible by 17 are there in between 25 and 450 ?

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  16. For what value of x, the number -2/7,x ,-2/7are in G.P.?

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  17. Insert three geometric mean (GM) between 1 and 1/16.

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  18. Find three numbers in G.P. whose sum is 19 and product is 216.

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  19. If a ,b ,c are respectively the p^(t h),q^(t h)a n dr^(t h) terms of a...

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  20. Find the 12^(th) term of the sequences -6,-18,-54,…..

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