hamburger menu
All Coursesall course arrow
adda247
reward-icon
adda247
Home
arrow
Quantitative Aptitude
arrow
Series
arrow
50, 400, 90, 640, 128, 1024
Question

Find the wrong term in following number series:

50, 400, 90, 640, 128, 1024

A.

90

B.

640

C.

128

D.

50

E.

400

Correct option is A


Wrong number = 90
Pattern of the series:

Free Tests

Free
Must Attempt
Video Solutions

RBI Assistant Pre 2026 Full Mock Test -01

languageIcon English
  • pdpQsnIcon100 Questions
  • pdpsheetsIcon100 Marks
  • timerIcon60 Mins
languageIcon English
Free
Must Attempt
Video Solutions

RBI Asst Prelims 2026 : Reasoning Section Test 01

languageIcon English
  • pdpQsnIcon35 Questions
  • pdpsheetsIcon35 Marks
  • timerIcon20 Mins
languageIcon English
Free
Must Attempt
Video Solutions

RBI Office Attendant 2026 Full Mock Test - 01

languageIcon English
  • pdpQsnIcon120 Questions
  • pdpsheetsIcon120 Marks
  • timerIcon90 Mins
languageIcon English

Similar Questions

test-prime-package

Access ‘SBI PO’ Mock Tests with

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

Suggested Test Series

RBI Assistant 2026 Mock Test Series
RBI Assistant 2026 Mock Test Series
367 Tests + 2 Free Tests
button-right
RBI Office Attendant 2026 Mock Test Series
RBI Office Attendant 2026 Mock Test Series
118 Tests + 3 Free Tests
button-right
SBI Clerk 2026 Mock Test
SBI Clerk 2026 Mock Test
293 Tests + 3 Free Tests
button-right
SBI PO 2026 Mock Test
SBI PO 2026 Mock Test
297 Tests + 3 Free Tests
button-right
NABARD Development Assistant 2026 Mock Test Series
NABARD Development Assistant 2026 Mock Test Series
165 Tests + 3 Free Tests
button-right
test-prime-package

Access ‘SBI PO’ Mock Tests with

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

Suggested Test Series

RBI Assistant 2026 Mock Test Series
RBI Assistant 2026 Mock Test Series
367 Tests + 2 Free Tests
button-right
RBI Office Attendant 2026 Mock Test Series
RBI Office Attendant 2026 Mock Test Series
118 Tests + 3 Free Tests
button-right
SBI Clerk 2026 Mock Test
SBI Clerk 2026 Mock Test
293 Tests + 3 Free Tests
button-right
SBI PO 2026 Mock Test
SBI PO 2026 Mock Test
297 Tests + 3 Free Tests
button-right
NABARD Development Assistant 2026 Mock Test Series
NABARD Development Assistant 2026 Mock Test Series
165 Tests + 3 Free Tests
button-right
Our Plans
Monthsup-arrow
BUY NOW