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  • Question
  • If 12 men or 18 women can do a piece of work in 14 days, then how long will 8 men and 16 women take to finish the work?


  • Options
  • A. 9 days
  • B. 10 days
  • C. 12 days
  • D. 14 days

  • Correct Answer
  • 9 days 

    Explanation

    12 men ? 18 women
    ? 1 man ? 18/12 women ? 3/2 women
    ? 8 men ? (3/2) x 8 = 12 women
    ? 8 men + 16 women = 12 women + 16 women = 28 women
    ? 18 women can do the work in 14 days .
    ? 1 woman can do the same work in (14 x 18) days.
    ? 28 women will do the same work in (14 x 18)/28 days.
    ? Required number of days = (14 x 18)/28 = 9 days


  • More questions

    • 1. 64, 71, 80, 91, 104, 119, 135, 155

    • Options
    • A. 71
    • B. 80
    • C. 104
    • D. 119
    • E. 135
    • Discuss
    • 2. 15, 16, 34, 105, 424, 2124, 12756

    • Options
    • A. 16
    • B. 34
    • C. 105
    • D. 424
    • E. 2124
    • Discuss
    • 3. 196, 169, 144, 121, 100, 80, 64

    • Options
    • A. 169
    • B. 144
    • C. 121
    • D. 100
    • E. 80
    • Discuss
    • 4. 
      What time will be taken by a boat to cover a distance of 128 km along the stream, if speed of a boat in still water is 24 km/h and speed of stream is 8 km/h?

    • Options
    • A. 8 km/h
    • B. 4 km/h
    • C. 7 km/h
    • D. 6 km/h
    • Discuss
    • 5. 
      A boat goes 12 km in 1 h in still water. It takes thrice time in covering the same distance against the current. Find the speed of the current.?

    • Options
    • A. 8 km/h
    • B. 12 km/h
    • C. 6 km/h
    • D. 7 km/h
    • Discuss
    • 6. 
      A boat travels upstream from B to A and downstream from A to B in 3 hours. If the speed of the boat in still water is 9km/hr and the speed of the current is 3 km/hr the distance between A and B is?

    • Options
    • A. 4 km
    • B. 6 km
    • C. 8 km
    • D. 12 km
    • Discuss
    • 7. 
      If the first day of June is Saturday, them the date on which the last Saturday of that month falls, is?

    • Options
    • A. 22
    • B. 28
    • C. 29
    • D. 30
    • Discuss
    • 8. 
      A boat goes 48 km downstream in 20 h. It takes 4 h more to cover the same distance against the stream. What is the speed of the boat in still water?

    • Options
    • A. 2.2 km/h
    • B. 2 km/h
    • C. 4 km/h
    • D. 4.2 km/h
    • Discuss
    • 9. 
      If the probability that A will live 15 yr is 7/8 and that B will live 15 yr is 9/10, then what is the probability that both will live after 15 yr?

    • Options
    • A. 1/20
    • B. 63/80
    • C. 1/5
    • D. None of these
    • Discuss
    • 10. 
      Keshav can row 60 km downstream and 36 km upstream, taking 10 h each time. What is the velocity of the current?

    • Options
    • A. 3 km/h
    • B. 2. 2 km/h
    • C. 4 km/h
    • D. 1.2 km/h
    • Discuss


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