aliensbrain
  • Home
  • Study
  • Quizzes
  • 🎤AI Practicefree
  • Notebooks
  • Community
  • Sign in
Multiple choice

Find out the wrong number in the following number series. 10, 5, 5, 20, 40, 320

  1. 10

  2. 20

  3. 40

  4. 320

  5. 5
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The series follows the pattern ÷2, ×1, ×2, ×4, ×8: 10÷2=5, 5×1=5, 5×4=20 (should be ×2=10), 10×4=40 (should be ×4=40), 40×8=320. The term 20 should be 10 to maintain the pattern.

Keep practicing — related questions

  • In which of the following questions, one term in the number series is wrong. Find out the wrong term. 5, 10...
  • In the following number-series, one number is wrong. Find the wrong number: 5 8 20 42 124 246
  • In each of the following series only one number is wrong. You have to find out that wrong number. $20 10 11...
  • In the following number series one number is wrong. Find that wrong number. 5 6 19 41 105 230
  • In the following number series, one number is wrong. Find that wrong number. 8, 20, 70, 292, 1485, 8946, 62671
  • In each of the following number series only one number is wrong. Find out that wrong number. 5 65 715 6435 ...
  • In the following number-series, one number is wrong. Find the wrong number: 4 5 15 49 201 1011
  • Each of the following number series one number is wrong. Find out the odd number. 150 75 50 40 30 25

Practice this chapter

  • Number Series (2662 questions)
Advertisement
© Aliensbrain | all rights reserved
  • About
  • Contact
  • Terms and Condition
  • Privacy Policy