Question
There are six persons P, Q, R, S, T and U. R is the
brother of U. Q is the sister of T's wife. S is the mother of P and grandmother of U. There are two mothers, three sisters and a father in the group. Who is the father?Solution
A man can swim at the rate of 5 km/hr in still water. If the speed of the water is 2 km/hr, then the time taken by him to swim 18 km upstream is
A man goes downstream with a boat to some destination and returns upstream to his original place in 5 hours. If the speed of the boat in still water and...
A boat can travel 18 km downstream in 2 hours and 12 km upstream in 3 hours. What is the speed of the boat in still water?
The speed of the stream is 14 km/h. Boat ‘A’ covers 130 km distance against the stream in 5 hours and boat ‘B’ covers 100 km distance against th...
A boat running downstream covers a distance of 48 km in 3 hrs and covering the same distance upstream in 12 hrs. What is the speed of a boat in still wa...
The speed of a boat in still water is 30 km/hr. If the boat covers 160 km in upstream in 8 hours, then find the time taken by the boat to travel 160 km ...
A man’s speed with the current is 23 km/hr and the speed of the current is 6 km/hr . The man’s speed against the current is:Â
- Boat ‘L’ moves 1.5 times faster than boat ‘K’ in still water. If both boats start at the same time from locations 270 km apart and move towards eac...
A boat covers 24km upstream and 36km downstream in 6 hours while it covers 36km upstream and 24km downstream in 13/2 hours. The speed of the current is....
A boat can cover 130 km in upstream in 13 hours and 120 km in downstream in 4 hours. Find the speed of the stream.