arrow
arrow
arrow
​Select the number from among the given options that will come next in the following series​20,40,63,90,122, __
Question

Select the number from among the given options that will come next in the following series
​20,40,63,90,122, __

A.

120

B.

150

C.

160

D.

110

Correct option is C

Given: 20,40,63,90,122, __
Logic: Difference of two constitutive number is increasing 20, 23, 27, 32, 38
40-20= 20
63-40=23
90-63=27
122-90=32
Similarly,
? - 122 = 38
? = 38 + 122
? = 160
Image solution:
Thus, Option C is the correct answer.

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

CBT-1 General Awareness Section Test 1

languageIcon English
  • pdpQsnIcon40 Questions
  • pdpsheetsIcon30 Marks
  • timerIcon25 Mins
languageIcon English
test-prime-package

Access ‘RRB NTPC’ 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