arrow
arrow
arrow
Which of the following numbers will replace the question mark (?) in the given series? 41 49 65 89 121 161 ?
Question

Which of the following numbers will replace the question mark (?) in the given series?
41 49 65 89 121 161 ?

A.

209

B.

189

C.

195

D.

215

Correct option is A

Given: 41 49 65 89 121 161 ?
Logic: +8, + 16, +24, + 32, + 40 and then + 48 as these all are in multiple of 8
41+8=49
49+16= 65
65+24=89
89+32=121
121+40=161
161+48= 209
Hence 209 is the right answer

Free Tests

Free
Must Attempt

SSC GD PYP (Held on 4 Feb 2025 S1)

languageIcon English
  • pdpQsnIcon80 Questions
  • pdpsheetsIcon160 Marks
  • timerIcon60 Mins
languageIcon English
Free
Must Attempt

Hindi Section Test 1

languageIcon English
  • pdpQsnIcon20 Questions
  • pdpsheetsIcon40 Marks
  • timerIcon12 Mins
languageIcon English
Free
Must Attempt

SSC GD Constable Full Mock Test 1

languageIcon English
  • pdpQsnIcon80 Questions
  • pdpsheetsIcon160 Marks
  • timerIcon60 Mins
languageIcon English
test-prime-package

Access ‘SSC CHSL Tier I’ Mock Tests with

  • 60000+ Mocks and Previous Year Papers
  • Unlimited Re-Attempts
  • Personalised Report Card
  • 500% Refund on Final Selection
  • Largest Community
students-icon
354k+ students have already unlocked exclusive benefits with Test Prime!
Our Plans
Monthsup-arrow