logo

CuriousTab

CuriousTab

Discussion


Home Aptitude Time and Work See What Others Are Saying!
  • Question
  • A can do a piece of work in 4 days and B can complete the same work in 12 days. What is the number of days required to do the same work together?


  • Options
  • A. 2 days
  • B. 3 days
  • C. 4 days
  • D. 5 days

  • Correct Answer
  • 3 days 

    Explanation

    A 's 1 day's work = 1/4
    B ' s 1 days's work = 1/12
    (A+B) ' s day ' s work = 1/4 + 1/12
    = (3 + 1)/12 = 4/12 = 1/3
    Days required by A and B together to do the work = 1 / (A + B ) ' s day ' s work = 3 days


  • More questions

    • 1. 
      4.2 x 4.2 - 1.9 x 1.9 is equal to:
      2.3 x 6.1

    • Options
    • A. 0.5
    • B. 1.0
    • C. 20
    • D. 22
    • Discuss
    • 2. The square root of (7 + 3√5) (7 - 3√5) is


    • Options
    • A. √5
    • B. 2
    • C. 4
    • D. 3√5
    • Discuss
    • 3. 
      If √5 = 2.236, then the value of √5 - 10 + √125 is equal to:
      2 √5

    • Options
    • A. 5.59
    • B. 7.826
    • C. 8.944
    • D. 10.062
    • Discuss
    • 4. 
      If log10 7 = a, then log10 1 is equal to:
      70

    • Options
    • A. - (1 + a)
    • B. (1 + a)-1
    • C.
      a
      10
    • D.
      1
      10a
    • Discuss
    • 5. 
      log √8 is equal to:
      log 8

    • Options
    • A.
      1
      √8
    • B.
      1
      4
    • C.
      1
      2
    • D.
      1
      8
    • Discuss
    • 6. 
      The value of 1 + 1 + 1 is:
      log3 60 log4 60 log5 60

    • Options
    • A. 0
    • B. 1
    • C. 5
    • D. 60
    • Discuss
    • 7. 
      .009 = .01
      ?

    • Options
    • A. .0009
    • B. .09
    • C. .9
    • D. 9
    • Discuss
    • 8. 
      Evaluate : (2.39)2 - (1.61)2
      2.39 - 1.61

    • Options
    • A. 2
    • B. 4
    • C. 6
    • D. 8
    • Discuss
    • 9. If 3√5 + √125 = 17.88, then what will be the value of √80 + 6√5?


    • Options
    • A. 13.41
    • B. 20.46
    • C. 21.66
    • D. 22.35
    • Discuss
    • 10. 
      The value of 0.1 x 0.1 x 0.1 + 0.02 x 0.02 x 0.02 is:
      0.2 x 0.2 x 0.2 + 0.04 x 0.04 x 0.04

    • Options
    • A. 0.0125
    • B. 0.125
    • C. 0.25
    • D. 0.5
    • Discuss


    Comments

    There are no comments.

Enter a new Comment