aliensbrain
  • Home
  • Study
  • Quizzes
  • 🎤AI Practicefree
  • Notebooks
  • Community
  • Sign in
  • Time and Work
  • A man starts a work and one more man is added from the 2n...
Multiple choice

A man starts a work and one more man is added from the 2nd day regularly. If the work is finished in 30 days, then find how many days would be required to complete the same work with 1 man working regularly?

  1. 4960 day

  2. 461 days

  3. 240

  4. 4960 hours

  5. Cannot be determind

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

Sum of triangular number = n(n + 1)(n + 2)/6

Keep practicing — related questions

  • A piece of work, started with 5 working men, takes 20 days to be completed when one man is added per day. F...
  • How many characters per sec (7 bit + 1 parity) can be transmitted over a 2,400 bps, if the transfer is asyn...
  • If you save 1 paise today, 2 paise the next day , 4 paise the succeeding day and so on, then your total sav...
  • The number of ATP and NADH2 molecules required to fix one molecule of CO2 during a dark reaction are
  • How many 4 digit numbers can be formed out of the digits 0, 1, 2, 3 and 4 if no digit is repeated?
  • How many rounds of Calvin cycle are required to produce one molecule of hexose?
  • How many ATPs are required to form one molecule of hexose sugar in C4 plants?
  • Usually it takes 10-bit to represent one character. How many characters can be transmitted at a speed of 1,...
Play the full quiz 🎤 Practise this topic out loud

Practice this chapter

  • Time and Work (2195 questions)
Advertisement
© Aliensbrain | all rights reserved
  • About
  • Contact
  • Terms and Condition
  • Privacy Policy