Question Detail

A man can do a piece of work in 5 days, but with the help of his son he can do it in 3 days. In what time can the son do it alone ?

  • \begin{aligned} 7\frac{1}{2}days \end{aligned}
  • \begin{aligned} 6\frac{1}{2}days \end{aligned}
  • \begin{aligned} 5\frac{1}{2}days \end{aligned}
  • \begin{aligned} 4\frac{1}{2}days \end{aligned}
Similar Questions :

1. A does half as much work as B in three-fourth of the time. If together they take 18 days to complete the work, how much time shall B take to do it

  • 40 days
  • 35 days
  • 30 days
  • 25 days

2. A can do a certain job in 25 days which B alone can do in 20 days. A started the work and was joined by B after 10 days. The number of days taken in completing the wotk were ?

  • \begin{aligned} 14\frac{2}{3}kmph \end{aligned}
  • \begin{aligned} 15\frac{2}{3}kmph \end{aligned}
  • \begin{aligned} 16\frac{2}{3}kmph \end{aligned}
  • \begin{aligned} 17\frac{2}{3}kmph \end{aligned}

3. To complete a work A and B takes 8 days, B and C takes 12 days, A,B and C takes 6 days. How much time A and C will take

  • 24 days
  • 16 days
  • 12 days
  • 8 days

4. A and B can together complete a piece of work in 4 days. If A alone can complete the same work in 12 days, in how many days can B alone complete that work ?

  • 4 days
  • 5 days
  • 6 days
  • 7 days

5. A is twice as good as workman as B and together they finish a piece of work in 18 days. In how many days will B alone finish the work.

  • 27 days
  • 54 days
  • 56 days
  • 68 days
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