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How many terms of the A.P. 1,4,7,... are...

How many terms of the A.P. 1,4,7,... are needed to give the sum 925 ?

A

20

B

22

C

24

D

25

Text Solution

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The correct Answer is:
D
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QUANTUM CAT-SEQUENCE, SERIES & PROGRESSIONS-QUESTION BANK
  1. The 12th term of an AP is -13 and the sum of its first four terms is 2...

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  2. The third term of an AP is 1/5 and the 5th term is 1/3 find the sum of...

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  3. How many terms of the A.P. 1,4,7,... are needed to give the sum 925 ?

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  4. How many terms of the series 20 + 16 + 12 amounts to 48?

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  5. p,q,r,s,t are first five terms of an A.P. such that P + r + t = -12 an...

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  6. The sum of all the terms of the A.P.7,10,13,... l is 1242. where l is...

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  7. Find the sum of all the integers between 55 and 555 which are divisibl...

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  8. How many terms are there in the A.P. whose first and fifth terms are ...

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  9. The first and last terms of an A.P. are - 7 and 233 and the sum of the...

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  10. The sum of three numbers in AP is 12 and sum of their cubes is 408 fin...

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  11. The sum of first 30 even natural numbers is

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  12. If you save 1 paisa today, 2 paise the next day, 3 paise the succedin...

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  13. The ratio of the 7th to the 3rd terms of an A.P. is 12:5, find the rat...

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  14. Find the sum of the first hundred even natural numbers divisible by 5:

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  15. If m times the mth term of an A.P. is equal to n times its nth term, f...

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  16. The sum of the first fifteen terms of an A.P. is 105 and the sum of th...

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  17. If the first term of an AP is 2 and the sum of the first five terms i...

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  18. The sum of the first six terms of an A.P. is 42. The ratio of the 10th...

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  19. (i) The sum of n terms of two arithmetic series are in the ratio of (7...

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  20. The sum of three numbers in AP is 15 and sum of their squares is 93 fi...

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