Question
Which of the following is NOT an example of an operating
system?Solution
It is a application software.
The speed of a boat in downstream is 20% more than speed of boat in still water. If the boat travels a distance of 90 km upstream in 15 hours then find...
A boat can move downstream at 30 km/h and upstream at 18 km/h. If it takes the boatman 10 hours to travel a total of (p + q) km upstream when the stream...
A man rows to a place 48 km distant and comes back in 14 hours. He finds that he can row 4 km with the stream at the same time as 3 km against the strea...
- A boat's speed in still water is 10 km/hr, and the current's speed is 3 km/hr. The boat takes a total of 15 hours to cover ‘x’ km each way (upstream an...
A boat's speed in still water is 50% greater than the speed of a stream, which flows at 12 km/h. Calculate the total time it takes for the boat to cover...
If the speed of a boat in a still water is 20 km per hour and the speed of current is 5 km per hour then the time taken by the boat to travel 100 KM wit...
A boat can travel 38 km downstream in 57 min. The ratio of the speed of the boat in still water to the speed of the stream is 3: 2. How much time will t...
Motor boat covers a certain distance downstream in a river in 5 hours. It covers the same distance upstream in 7 and half an hour. If the speed of the w...
A boy can swim a certain distance downstream in 3 hours and return in 7 hours. If the rate of stream is 4 kmph then what is the speed of boy in still wa...
A man can row 12 km/hr in still water. If the speed of the current is 3 km/hr, it takes 4 hours more in upstream than in the downstream for the same dis...
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