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  • Question
  • kavita, babita and samita started a work. 5 days later Samita left the work and Babita left the work after working 8 days. In how many more days Kavita would have completed the rest work if they take 20, 60 and 30 days individually to finish a work?


  • Options
  • A. 4
  • B. 5
  • C. 6
  • D. 8

  • Correct Answer


  • Explanation

    Efficiency of Kavita = 5%
    Efficiency of Babita = 1.66%
    Efficiency of Samita = 3.33%
    Work done in 5 days by K + B + S = 5 x 10 = 50%
    Work done in 3 days by K + B = 3 x 6.66 = 20%
    Remaning work (30%) done by Kavita alone = 30/5 = 6 days


  • More questions

    • 1. 
      The least number by which 176 be multiplied to make the result a perfect square is?

    • Options
    • A. 8
    • B. 9
    • C. 10
    • D. 11
    • Discuss
    • 2. 
      A group of students decided to collect as many paise from each member of group as is the number of members. If the total collection amounts to Rs. 22.09, the number of members in the group is?

    • Options
    • A. 37
    • B. 47
    • C. 107
    • D. 43
    • Discuss
    • 3. 
      If ? 256 / ? x = 2, then x is equal to?

    • Options
    • A. 64
    • B. 128
    • C. 512
    • D. 1024
    • Discuss
    • 4. 
      If N = 11 9/ 16 then ? N =?

    • Options
    • A. 13/4
    • B. 11/4
    • C. 1.125
    • D. None of these
    • Discuss
    • 5. 
      If x = ?3 + ?2, then the value of (x + 1)/(x - 1) - (x - 1)/(x + 1) is?

    • Options
    • A. ?3
    • B. ?2
    • C. ?6
    • D. None of above
    • Discuss
    • 6. 
      Which among ?8 and ?1000 is greater?

    • Options
    • A. ?8
    • B. ?1000
    • C. Both are equal
    • D. None of these
    • Discuss
    • 7. 
      Which among ?81 and ?1 is smaller?

    • Options
    • A. ?81
    • B. ?1
    • C. Both are equal
    • D. None of these
    • Discuss
    • 8. 
      IF (14) 3 is added to the square of a number, the answer to obtained is 4425. What is the number?

    • Options
    • A. 1849
    • B. 43
    • C. 41
    • D. 1681
    • Discuss
    • 9. 
      Which among ?10 and ?8 is greater?

    • Options
    • A. ?10
    • B. ?8
    • C. Both are equal
    • D. None of these
    • Discuss
    • 10. 
      Find the least number which multiplied with 74088 will make it a perfect square?

    • Options
    • A. 42
    • B. 44
    • C. 46
    • D. 48
    • Discuss


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