Multiple choice

Find the 20th term of the given sequence. 44, 48, 52, 56, . . .

  1. 110

  2. 115

  3. 120

  4. 140
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This is an arithmetic progression with the first term a = 44 and common difference d = 4. The n-th term is calculated as a + (n-1)d; for n = 20, this is 44 + (19 * 4) = 44 + 76 = 120.

AI explanation

The sequence is an arithmetic progression with a first term of 44 and a common difference of 4. The formula for the nth term is a + (n - 1)d, so the 20th term is 44 + (20 - 1)4. This simplifies to 44 + 19(4), which equals 44 + 76 = 120.

Keep practicing — related questions