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For an A.P if t4=12 and d=-10, then find...

For an A.P if `t_4=12` and `d=-10`, then find `a`. a)`-18` b)`42` c)`-5` d)`21`

A

`-18`

B

42

C

`-5`

D

21

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CHETANA PUBLICATION-Arithmetic Progression-EXERCISE
  1. Find the missing term in the A.P: -5, ...., 13 a)1 b)4 c)2 d)3

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  2. Find the t2 of the sequence for which S1=2,S2=12 and S3=30 a)24 b)1 c)...

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  3. For an A.P if t4=12 and d=-10, then find a. a)-18 b)42 c)-5 d)21

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  4. The next two terms of the given sequence 1,3,7,15,31….. are: a)42, 54 ...

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  5. In an A.P, a=8, tn=62, Sn=210, then find n. a)5 b)6 c)7 d)8

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  6. The sum of first n terms of an A.P. is Sn=………… a)n/2[t1+tn] b)n/2[2+(n...

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  7. A meeting hall has 30 rows in all. There are 20 seats in the first row...

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  8. State whether the given sequence is an A.P or not : 1^3,2^3,3^3,4^3,5^...

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  9. Is the following sequence Arithmetic Progression? If it is an A.P then...

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  10. Is the following sequence an Arithmetic progression? If it is an A.P t...

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  11. Is following sequence an Arithmetic progression? If it is an A.P then ...

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  12. Is the following sequence an Arithmetic progression? If it is an A.P t...

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  13. Is the following sequence is an Arithmetic progression? If it is an A....

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  14. Write an A.P where the common difference d and the first term a are: a...

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  15. Write an A.P where the common difference d and the first term a are a=...

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  16. Write an A.P where the common difference d and the first term a is giv...

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  17. Write an A.P where the common difference d and the first term a is giv...

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  18. Write an A.P where the common difference d and the first term a is giv...

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  19. How many terms are there in the A.P 187,194,201,…..,439 ?

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  20. Find n, if the nth term of the following sequence is 68: 5,8,11,14,….

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