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Time, Distance and Speed

A is thrice as good as B and can finish a work in 60 days less than that of B. If they work together, in how many days work will be completed ?

C. $22{1/2}$ DAYS
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A and B together can reap a field in 30 days. After 20 days work, B is called away and A takes 20 days more to complete the work. B alone could do the whole work in

D. 60 DAYS
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60 men undertook to finish a work in 62 days. They finished $2/3$ of the work in 32 days. How many men are required to finish the remaining work ?

A. 32 MEN
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Twenty four children can complete a work in twelve days whereas sixteen men can complete the same work in nine days. In How many days will twelve men and twelve children comlete the same work ?

C. 8
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Mohan rides a cycle at 8 kmph. After every 10 km he rests for 20 minutes.
He will cover 40 km in :

C. 6 HRS.
Posted in:  Time, Distance and Speed -  Aptitude -  Mathematics