Question
Nobita can row from a point A against a current for 30
minutes and then come back in favour of the current for the next 30 minutes and comes to the point B. If the distance of AB is 2 `2/5` km, then find the speed of the current (in km/hr)?Solution
A and B together can complete a piece of work in 12 days while A alone can complete 70% of the work in 14 days. Find the time taken by B to compl...
A and B together, B and C together and A and C together can complete a piece of work in 80 days, 60 days and 70 days respectively. Find the ratio of the...
A buffalo alone can plough field ‘A’ in 20 days. A Bull alone can plough the field ‘A’ in 32 days. Find the number of days taken by 2 bulls and ...
Anuj can complete a certain piece of work in 25 days by taking rest for 9 hours daily. If he rests twice as much as before and also works twice as fast...
‘M’ is 60% more efficient than ‘N’. ‘N’ started the work alone and worked for 20 days and after that ‘N’ is replaced by ‘M’. If the ...
- Pipes X and Y can fill a tank in 45 minutes and 60 minutes respectively. Another pipe Z can empty the tank in 1 hour 30 minutes. If X and Z are opened firs...
'Ramesh' can complete a work in 40 days. He started the work and left after 24 days from starting. The remaining work was done by 'Suresh' in 30 days. F...
Akhil and Nikhil together can complete a work in 9 days while Nikhil alone takes 12 days to complete 50% of the work. If the efficiency of Sachin is 20%...
Amit', 'Bhanu', and 'Chintu' can finish a piece of work in 51 days, 85 days, and 102 days respectively. They all begin working together on the task, but...
20 men can finish a work in 220 days, but at the end of 90 days, 20 additional men are employed. In how many more days will the work be completed?
