Aptitude · all questions

Time And Work
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Q161

A 10 hectare field is reaped by 2 men, 3 women and 4 children together in 10 days. If working capabilities of a man, a woman and a child are in the ratio 5 : 4 : 2, then a 16 hectare field will be reaped by 6 men, 4 women and 7 children in = ?

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Q162

If p men working p hours per day for p days produce p units of work, then the units of work produced by n men working n hours a day for days is = ?

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Q163

If two persons, with equal abilities, can do two jobs in two days then 100 persons with equal abilities can do 100 similar jobs in = ?

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Q164

A is twice as good a workman as B. If they work together, they can complete a job in 18 days. If A alone does the job, in how many days he will complete the job ?

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Q165

A is thrice as good a workman as B and so takes 60 days less than B for doing a job. The time in which they can do the job together is = ?

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Q166

A and B can do a job in 7 days. A is

1 \frac{3}{4}

times as efficient as B. The same job can be done by A alone in ?

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Q167

A road of 5 m length will be constructed in 100 days. So, 280 workers were employed. But after 80 days it was found that only

3 \frac{1}{2}

km road was completed. Now how many more people were need to finish the work in the specified time ?

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Q168

If the work done by (x - 1) men in (x + 1) days and the work done by (x + 2) men in (x - 1) days are in the ratio 9 : 10, then the value of x is equal to ?

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Q169

A can do a piece of work in 70 days and B is 40% more efficient then A. Then the number of days taken by B to do the same work is = ?

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Q170

A can do a certain work in 12 days. B is 60% more efficient then A. How many days will B and A together take to do the same job?

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Q171

Kamal can do a work in 15 days. Bimal is 50% more efficient then Kamal. The number of days, Bimal will take to do the same piece of work, is = ?

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Q172

A does 20% less work than B. If A can complete a piece of work in

7 \frac{1}{2}

hours, then B can do it in ?

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Q173

A, B and C can separately do a work in 12, 15 and 20 days respectively. They started to work together but C left after 2 days. The remaining work will be finished in = ?

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Q174

A can do a piece of work in 15 days, which B can do it in 10 days. B worked at it for 8 days. A can finish the remaining work in?

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Q175

A does half as much work as B in one-sixth of the time. If together they take 10 days to complete a work. How much time shall B alone take to do it ?

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Q176

Some carpenters promised to do a job in 9 days but 5 of them were absent and remaining men did the job in 12 day. The original number of carpenters was ?

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Q177

If 4 men or 6 women can do a piece of work in 12 days working 7 hours a day, how many days will it take to complete a work twice as large with 10 men and 3 women working together 8 hours a day ?

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Q178

A contractor undertook to finish a work in 92 days and employed 110 men. After 48 days, he found that he had already done

\frac{3}{5}

part of the work, the number of men he can withdraw so that his work may still be finished in time is ?

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Q179

A man undertakes to do a certain work in 150 days. He employs 200 men. He finds that only a quarter of the work is done in 50 days. The number of additional men that should be appointed so that the whole work will be finished in time is = ?

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Q180

A can complete a piece of work in 18 days, B in 20 days and C in 30 days. B and C together start the work and are forced to leave after 2 days. The time taken by A alone to complete the remaining work is ?

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