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In each of the following find the terms ...

In each of the following find the terms required. (a) The seventh term of 2, 7, 12.... (b) The fifth term of 21, 28, 35, ... (c) The eighteenth term of 9, 5, 1,.....

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The correct Answer is:
(a) 32(b) 49 (c) -59
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ICSE-SEQUENCE AND SERIES -EXERCISE 14 (b)
  1. Write the first six terms of an A.P. in which a= 7 (1)/(2) , d= 1 ...

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  2. Write the first six terms of an A.P. in which a=x ,d = 3x +2

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  3. Write the 5th and 8th terms of an AP whose 10th term is 43 and the com...

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  4. In each of the following find the terms required. (a) The seventh term...

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  5. Find the first four terms and the eleventh term of the series whose nt...

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  6. The 5th term of an A.P. is 11 and the 9th term is 7. Find the 16th ter...

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  7. Which term of the series 5, 8, 11...... is 320 ?

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  8. The fourth term of an A.P. is ten times the first. Prove that the sixt...

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  9. The fourth term of an A.P. is equal to 3 times the first term, and the...

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  10. Which term of the progression 19, 18(1)/(5), 17 (2)/(5) ,..... is the ...

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  11. Find the value of k so that 8k +4, 6k-2, and 2k + 7 will form an A.P.

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  12. Find a, b such that 7.2, a, b, 3 are in A.P.

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  13. Determine 2nd term and 5'th term of an A.P. whose 6th term is 12 and 8...

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  14. Prove that the product of the 2nd and 3rd terms of an A.P. exceeds the...

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  15. The 2nd, 31st and last term of an A.P. are 7(3)/(4) , (1)/(2) and -6(...

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  16. If 7 times the 7th term of an A.P. is equal to 11 times its 11th term,...

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  17. Determine k so that k + 2, 4k - 6 and 3k - 2 are three consecutive ter...

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  18. The pth term of an A.P. is q and the qth term is p, show that the mth ...

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  19. Let T be the rth term of an A.P. whose first term is a and conmon diff...

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  20. Given that the (p+1)th term of an A.P. is twice the (q+1)th term, prov...

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