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  • Question
  • 2 men and 3 women finish 25% of the work in 4 days, while 6 men and 14 women can finish the whole work in 5 days, In how many days will 20 women finish it?


  • Options
  • A. 20
  • B. 25
  • C. 24
  • D. 88

  • Correct Answer
  • 20 

    Explanation

    8M + 12W = 4 days (whole work)
    ? 32M + 48W = 1 day ................ (1)
    Again 6M + 14W = 5 days
    ? 30M + 70W = 1 day ................(2)
    From eq. (1) and (2)
    32M + 48W = 30M +70W
    ? 2M = 22W
    ? 1M = 11W
    Now, 30M + 70W = 1 day
    (30 X 11 X 70)W = 1 day
    Therefore 400W requires 1 day to complete the whole work.
    Thus 20W needs 20 days to complete the whole work.


  • More questions

    • 1. 
      Five coins are tossed at a time. Then, the probability of obtaining at least one tail is

    • Options
    • A. 31/32
    • B. 1/32
    • C. 1/5
    • D. 5/32
    • Discuss
    • 2. 
      Find the maximum number of tree which can plant 20 m apart on the two side of straight road 1760 m long

    • Options
    • A. 174
    • B. 176
    • C. 180
    • D. 178
    • Discuss
    • 3. 
      1307 x 1307 =?

    • Options
    • A. 1601249
    • B. 1607249
    • C. 1701249
    • D. 1708249
    • Discuss
    • 4. 
      The circumferences of two concentric are 176 m and 132 m respectively. what is the difference between their radii?

    • Options
    • A. 5 meter
    • B. 7 meter
    • C. 8 meter
    • D. 44 meter
    • Discuss
    • 5. 
      (1/2 ÷ 4 + 20) / (1/2 x 4 + 20) =?

    • Options
    • A. 81 / 88
    • B. 23/11
    • C. 161 / 176
    • D. 1
    • Discuss
    • 6. 
      Find the cardinal number of the following set {x: x = 2n, n ? N, 4 ? x ? 11}

    • Options
    • A. 8
    • B. 6
    • C. 12
    • D. 4
    • Discuss
    • 7. 
      If a fraction is multiplied by itself and then divided by the reciprocal of the same fraction, the result is 18 26/ 27. Find the fraction.

    • Options
    • A. 8/27
    • B. 11/3
    • C. 22/3
    • D. 32/3
    • Discuss
    • 8. 
      (0.04) 3 =?

    • Options
    • A. 0.064
    • B. 0.0064
    • C. 0.00064
    • D. 0.000064
    • Discuss
    • 9. 
      If a + b + c = 8, then the value of (a ? 4)3 + (b ? 3)3 + (c ? 1)3 ? 3 (a ? 4) (b ? 3) (c ? 1) is

    • Options
    • A. 2
    • B. 4
    • C. 1
    • D. 0
    • Discuss
    • 10. 
      3571 +? - 6086 = 155

    • Options
    • A. 2400
    • B. 2630
    • C. 2515
    • D. None of these
    • Discuss


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