Question

Which of the following form an infinite sequence?

(i) Odd positive integers between 1 and 99

(ii) 1.5, 2.4, 3.3, 4.2, 5.1, 6.0, 6.9, 7.5

(iii) Sequence of all integers

(iv)Prime numbers less than 25.

• A. Only (i)
• B. Only (iii)
• C. Both (i) & (iii)
• D. Only (ii)

Answer 1

The correct option is C

Both (i) & (iii)

Sequence with infinite number of terms is an infinite sequence.

(i) Sequence of odd positive numbers.

1, 3, 5, 7, 9, 11, 13,.... 99 -- Finite sequence

(ii) 1.5, 2.4, 3.3, 4.2, 5.1, 6.0, 6.9, 7.5 -- Finite sequence

(iii) Sequence of all integers

.... , -4, -3, -2, -1, 0, 1, 2, 3, 4, .. – Infinite sequence

(iv) Prime numbers less than 25.

2, 3, 5, 7....23 -- Finite sequence