Multiple choice

There is a sequence of odd numbers starting from 9. Find the 10th term.

  1. 23

  2. 25

  3. 27

  4. 29
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The sequence is an arithmetic progression with first term a = 9 and common difference d = 2. The 10th term is a + (10 - 1)d = 9 + 9(2) = 9 + 18 = 27.

AI explanation

The sequence of odd numbers starting from 9 can be expressed by the formula 2n + 7, where n is the term number. To find the 10th term, substitute n = 10 into the formula to get 2(10) + 7. This results in 27.

Keep practicing — related questions