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

The missing term in the series 1, 8, 9, 64, 25, 216, (?), 512 is:

  1. 343

  2. 49

  3. 81

  4. 125

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

The series alternates between squares and cubes of consecutive integers: 1=1², 8=2³, 9=3², 64=4³, 25=5², 216=6³, ___=7²=49, 512=8³. The missing term is 7² = 49. Option B is correct.

Keep practicing — related questions

  • Find the next number in the series: 1, 8, 9, 64, 25, 216, 49, 512 ?
  • Directions: Complete the following number series. 7, 8, 13, 5, 18, - 1, 22, - 10, 25, ?
  • Directions: Complete the following number series. 8, 13, 25, 44, ?, 103, 143
  • The balance as on 1st June in the saving bank account of Mr. Sandeep was Rs. 9,800. In the same month, he h...
  • A machinery is purchased on August 1, 2011 for Rs. 1,20,000. It was put into use with effect from October 1...
  • The average marks of 22 students in section A of class 9 are 52, that of 23 students of section B are 50 an...
  • What will be the output of the following C code? void main() { int fact=1,i; clrscr(); for(i=2;i<=8;i++) fa...
  • Which three are methods of the Object class? 1. notify(); 2. notifyAll(); 3. isInterrupted(); 4. synchroniz...

Practice this chapter

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