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Two APs have the same common difference...

Two APs have the same common difference. The first term of one of these is -1 and that of the other is -8. The difference between their 4th terms is

A

-1

B

-8

C

7

D

-9

Text Solution

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The correct Answer is:
C
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NCERT EXEMPLAR-ARITHMETIC PROGRESSIONS-Arithmetic Progressions
  1. If the common difference of an AP is 5, then what is a(18)-a(13) ?

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  2. What is the common difference of an AP in which a(18)-a(14)=32?

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  3. Two APs have the same common difference. The first term of one of the...

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  4. If 7 times the 7th term of an AP is equal to 11 times its 11th term, t...

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  5. The 4th term from the end of an AP -11, -8, -5, …, 49 is

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  6. The famous mathematician associated with finding the sum of the first ...

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  7. If the first term of an AP is -5 and the common difference is 2, then ...

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  8. The sum of first 16 terms of the AP 10, 6, 2, … is

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  9. In an AP, if a = 1, a(n)= 20 and S(n) = 399, then n is equal to

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  10. The sum of first five multiples of 3 is

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  11. Which of the following form of an AP ? Justify Your answer. (i) -1,-...

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  12. Justify whether it is true to say that -1, (-3)/(2), -2, (5)/(2), … ...

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  13. For the AP -3, -7, -11, … can we find directly a(30)-a(20) without ac...

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  14. Two A.P have the same common difference. The first term of one A.P is ...

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  15. Is 0 a term of the AP 31, 28, 25, …? Justify your answer.

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  16. The taxi fare after each km, when the fare is Rs. 15 for the first km ...

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  17. In which of the following situations, do the lists of numbers involved...

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  18. Justify whether it is true to say that the following are the nth terms...

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  19. Match the AP's given in column A with suitable common differences giv...

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  20. Verify that each of the following is an AP and then write its next thr...

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