A can build up a wall in 8 days while B can break it in 3 days. A has worked for 4 days and then B joined to work with A for another 2 days only. In how many days will A alone build up the remaining part of the wall ?
\({ \text{6}}\frac{1}{3}{ \text{ days}}\)
7 days
\({ \text{7}}\frac{1}{3}{ \text{ days}}\)
\({ \text{13}}\frac{1}{3}{ \text{ days}}\)
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12 men can do a piece of work in 24 days. How many days are needed to complete the work, if 8 men do this work ?
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2
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Two men undertake to do a piece of work for Rs. 1400. The first man alone can do this work in 7 days while the second man alone can do this work in 8 days. If they working together complete this work in 3 days with the help of a boy, how should the money be divided ?
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3
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A and B can do a work in 8 days, B and C can do the same work in 12 days. A, B and C together can finish it in 6 days. A and C together will do it in = ?
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4
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A and B together can finish a bit of work in 12 days, B and C can do it in 20 days and C and A do it 15 days. A, B and C together can finish it in
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5
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There is provision of food in fort for 1200 soldiers for 60 days. After 15 days, 200 soldiers leave the fort. Remaining food will last for how many days?
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6
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If 3 men or 4 women can plough a field in 43 days, how long will 7 men and 5 women take to plough it?
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7
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Three men A, B, C working together can do a job in 6 hours less time than A alone, in one hour less time than B alone and in one half the time needed by C when working alone. Then A and B together can do the job in:
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8
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Two typists of varying skills can do a job in 6 minutes if they work together. If the first typist typed alone for 4 minutes and then the second typist typed alone for 6 minutes, they would be left with \(\frac{1}{5}\) of the whole work. How many minutes would it take the slower typist to complete the typing job working alone?
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9
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A can do a bit of work in 8 hours while B along can do it in 12 hours. Both A and B cooperating can complete the work in:
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10
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A man, a woman and a boy can do a piece of work in 6, 9 and 18 days respectively. How many boys must assist one man and one woman to do the work in 1 day ?
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