What will be the 50th term in the following series? 20, 24, 28, 32, ....
Show answer & explanation
Correct answer: A
Explanation
Given:
Series = 20, 24, 28, 32, ...
According to the formula:
The nth term of an Arithmetic Progression = a + (n − 1)d
a = 20
d = 24 − 20 = 4
n = 50
a₅₀ = 20 + (50 − 1) × 4
= 20 + 49 × 4
= 20 + 196
= 216