Odd One Out · Question 30 · Hard

Find the odd one out:

  1. 121
  2. 225
  3. 289
  4. 169
Answer and explanation

Answer: B. 225

Explanation: All four are perfect squares, but 121 = 11², 169 = 13² and 289 = 17² are squares of prime numbers. 225 = 15² and 15 is not prime.

Previous: Find the odd pair:

Practise odd one out

Try a fresh set of odd one out questions with an explanation after every answer, free and without signing up: Odd One Out practice. Or sit a full placement mock test.

More odd one out questions

More logical reasoning practice

Clocks & Calendars · Statements & Conclusions · Data Sufficiency · Puzzles · Number Series · Letter Series · Coding–Decoding · Blood Relations

LogicWiz Exams home · All practice topics · Placement mock tests · Daily 10 challenge