Question

Identify the odd number: 1, 8, 27, 64, 121, 216

• A. 64
• B. 121
• C. 216
• D. 27

Answer 1

Answer:

B. 121

The series is:

1, 8, 27, 64, 121, 216

Notice that:

• $(1 = 1^3)$

• $(8 = 2^3)$

• $(27 = 3^3)$

• $(64 = 4^3)$

• $(216 = 6^3)$

Following the pattern, the fifth term should be:

• $(5^3 = 125)$

But the series has 121 instead of 125.

Therefore, the odd number is 121.