Test Index

Series and Odd Man out Practice Test 5

Question : 1 of 40

Marks: +1, -0

256, 324, 420, 484, 576

Solution:

Concept:

The odd term is the one that does not fit the perfect-square pattern.

Explanation:

Check each term as a square of an even number.

256 = 16^2

324 = 18^2

420

is not a perfect square.

484 = 22^2

576 = 24^2

All other terms are squares of consecutive even numbers.

420

is the odd term.

Answer:

420

Go to Question:

Next Question