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 a work in 10 days and B does the same work in 15 days. In how many days they together will do the same work ?

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2. 4 men and 6 women finish a job in 8 days, while 3 men and 7 women finish it in 10 days. In how many days will 10 women working together finish it ?

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3. 5 men and 2 boys working together can do four times as much work as a man and a boy. Working capacity of man and boy is in the ratio

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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 ?

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5. A alone can complete a work in 16 days and B alone can do in 12 days. Starting with A, they work on alternate days. The total work will be completed in

  • \begin{aligned} 13\frac{1}{4} \end{aligned}
  • \begin{aligned} 13\frac{1}{2} \end{aligned}
  • \begin{aligned} 13\frac{3}{4} \end{aligned}
  • \begin{aligned} 13\frac{4}{4} \end{aligned}
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