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In an A.P, first two terms are -3, 4, th...

In an A.P, first two terms are `-3`, `4`, then 21st term is……….a)`-143` b)`143` c)`131` d)`137`

A

`-143`

B

143

C

137

D

17

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CHETANA PUBLICATION-Arithmetic Progression-EXERCISE
  1. For a given A.P., t7=4, d=-4 then a=……… a)6 b)-7 c)20 d)28

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  2. For a given AP, a=3.5, d=0, n=101 then tn=………. a)0 b)103.5 c)104.5 d)...

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  3. In an A.P, first two terms are -3, 4, then 21st term is……….a)-143 b)14...

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  4. If for an A.P, d=5 then t18-t13=……………a)5 b)20 c)25 d30

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  5. Sum of first five multiples of 3 is……a)45 b)15 c)55 d)35

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  6. 15, 10, 5,…… In this A.P the sum of first 10 terms is…..a)-75 b)-125 c...

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  7. In an A.P, 1st term is 1 and the last term is 20.The sum of all terms ...

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  8. For the A.P: 4,9,14…… t11=…..a)49 b)54 c)59 d)44

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  9. If a=6, d=3, then S10=……a)192 b)195 c)198 d)201

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  10. The sum of first 10 natural numbers is ..... a)55 b)155 c)310 d)210

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  11. Which of the following sequence is not an A.P? a)0.5,2,3.5,5,…. b)3,5,...

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  12. Find the missing term in the A.P: -5, ...., 13 a)1 b)4 c)2 d)3

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

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

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  16. 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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  17. 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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  18. A meeting hall has 30 rows in all. There are 20 seats in the first row...

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

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

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