arrow
arrow
arrow
Find the ODD one out from the given options.
Question

Find the ODD one out from the given options.

A.

280

B.

325

C.

226

D.

145

Correct option is A

Logic: number =  (n2 + 1)
Option (a) 280 → 280 - 1 = 279 Which is not perfect square. 
Option (b) 325 → 325 - 1 = 324 perfect square of 18.
Option (c) 226 → 226 - 1 = 225 perfect square of 15. 
Option (d) 145 → 145 - 1 = 144 perfect square of 12. 
Thus, the correct answer is (a).

Free Tests

Free
Must Attempt

CBT-1 Full Mock Test 1

languageIcon English
  • pdpQsnIcon100 Questions
  • pdpsheetsIcon100 Marks
  • timerIcon90 Mins
languageIcon English
Free
Must Attempt

RRB NTPC Graduate Level PYP (Held on 5 Jun 2025 S1)

languageIcon English
  • pdpQsnIcon100 Questions
  • pdpsheetsIcon100 Marks
  • timerIcon90 Mins
languageIcon English
Free
Must Attempt

RRB NTPC UG Level PYP (Held on 7 Aug 2025 S1)

languageIcon English
  • pdpQsnIcon100 Questions
  • pdpsheetsIcon100 Marks
  • timerIcon90 Mins
languageIcon English

Similar Questions

test-prime-package

Access ‘RRB JE’ Mock Tests with

  • 60000+ Mocks and Previous Year Papers
  • Unlimited Re-Attempts
  • Personalised Report Card
  • 500% Refund on Final Selection
  • Largest Community
students-icon
368k+ students have already unlocked exclusive benefits with Test Prime!
Our Plans
Monthsup-arrow