Sequence and Series-Sum Upto N Terms of Special Series (KVPY Stream-SA (Class 11) Math): Questions 1 - 3 of 3

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Question number: 1

» Sequence and Series » Sum Upto N Terms of Special Series

Appeared in Year: 2011

MCQ▾

Question

The expression, 22+1221+32+1321+42+1421++(2011)2+1(2011)21 lies in interval

Choices

Choice (4) Response
a.

(2011t2011;2011t2012)

b.

(2011,201112)

c.

(2010,201012)

d.

(2012,201212)

Question number: 2

» Sequence and Series » Sum Upto N Terms of Special Series

Appeared in Year: 2010

MCQ▾

Question

The number of positive integers n in the set {1, 2, 3, …, 100} for which the number

12+22+32++n21+2+3++n is an integer is

Choices

Choice (4) Response
a.

4

b.

6

c.

7

d.

14

Question number: 3

» Sequence and Series » Sum Upto N Terms of Special Series

Appeared in Year: 2014

MCQ▾

Question

The sum of all positive integers n for which

13+23++(2n)312+22++n2

Is also an integer is

Choices

Choice (4) Response
a.

9

b.

Infinite

c.

8

d.

15

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