Question

Complete the series. 1, 4, _ , 16, 25

• A. 8
• B. 6
• C. 9
• D. 12

Answer 1

Answer:

C. 9

The series is:

1, 4, _, 16, 25

Notice the pattern of perfect squares:

• (1 = 1^2)

• (4 = 2^2)

• (? = 3^2 = 9)

• (16 = 4^2)

• (25 = 5^2)

So the missing term is:

9