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Total distance = 60 km When he travels some distance by bus & some by walking, he takes = 4hr 20 Min But if he travels Whole journey by the Bus, he saves 1hr 20 min means 4hr 20 min - 1hr 20min Speed = Distance/ Time = 60/3 = 20 km/hr.
A mango kept in a basket doubles every one minute. If the basket gets completely filled by mangoes in 30 min then in how many minutes half of the basket...
P, Q and R can complete a work in 10 days. 20 days and 30 days, respectively, working alone. How soon can the work be completed if P is assisted by Q an...
The total age of 'R' and 'D' eight years ago was thirty-six. Four years separate 'R' and 'D' in age. Determine the sum of total age (in years) between '...
A and B can do a work in 21 days, A is (7/4) times as efficient as B. In how many days, A alone can complete the (100/3)% of the work?
A, B and C can do a work in 8, 16 and 24 days respectively. They all begin together. A continues to work till it is finished, C leaving off 2 days and B...
Pipe A can fill the tank 5 times faster than pipe B, if pipe A and B together fill the tank in 50 minutes, then pipe B alone can fill the tank in:
A and B together can complete a piece of work in 35 days while A alone can complete 50% of the work in 20 days. Find the time taken by B to complete 12....
Three pipes, A, B, C can fill an empty cistern in 2, 3 and 6 hours respectively. They are opened together. After what time should B be closed, so that ...
P and Q can complete a project in 15 days and 10 days, respectively. They started doing the work together, but after 2 days, Q had to leave and P alone...
