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Sequences and Series - Topic Wise Multiple Choice Questions (MCQ)

Topic Wise Sequences and Series MCQ for competitive exam Practice Multiple Choice Questions for Engg Bank JEE CET Entrance Online Test



1 )

If the 1st term and common ratio of a G. P. are 1 and 2 respectively then s1 + s3 + s5 +…+ s2n–1 =_______

 

(1/3)(22n – 5n + 4)
(1/3)(22n+1 – 5n)
(1/3)(22n+1 – 3n – 2)
(1/3)(22n+1 – 5n2)


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2 )

(1/2) + (3/4) + (7/8) + (15 / 16) ...100 terms =_________

2^(100) + 99
2^(–100) + 99
2^(–101) + 100
2^(-99) + 99


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3 )

If for the triangle whose perimeter is 37 cms and length of sides are in G. P. also the length of the smallest side is 9 cms then length of remaining two sides are____ and  ____

12, 16
14, 14
10, 18
15, 13


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4 )

Find a, b and c between 2 and 18 such that a + b + c = 25, 2, a, b are in A. P. and b, c, 18 are in G. P.

5, 8, 12
4, 8, 13
3, 9, 13
5, 9, 11


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5 )

Find out four numbers such that, first three numbers are in G. P., last three numbers are in A. P. having common   difference 6, first and last numbers are same.

8, 4, 2, 8
– 8, 4, – 2, – 8
8, – 4, 2, 8
– 8, – 4, – 2, – 8


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