Question
Ratio of males to females in village βAβ and village
βBβ is 6:7 and 13:14, respectively and number of females in village βBβ is 25% more than that in village βAβ. Find difference between number of males in villages βAβ and βBβ if number of males in village βBβ is 1300.Solution
Number of females in village βBβ = 14/13 Γ 1300 = 1400 Number of females in village βAβ = 1400/1.25 = 1120 Number of males in village βAβ = 6/7 Γ 1120 = 960 Desired difference = 1120 β 960 = 340
- The boat's downstream and upstream speeds are 24 km/hr and 16 km/hr respectively. If the time taken to cover a distance of (x + y) km upstream with stream ...
A boat takes 20 hours to go 200 km upstream. If the boat doubles its speed, it can cover 200 km downstream in 4 hours. Find the speed of the stream.
The ratio of the speed of boat in upstream to speed of boat in downstream is 7:9. If the boat can cover a total of 70 km upstream and 90 km downstream i...
The ratio of the distances traveled by a boat in upstream and downstream is 6:7, respectively, and the total time taken to cover the desired distance is...
The time taken by a boat to travel 'd' kilometers downstream is 8 hours, while the time taken to travel (d - 60) kilometers upstr...
A man can row at 6 kmph in still water. If the velocity of current is 4 kmph and it takes him 6 hour to row to a place and come back, how far is the place?
A Passenger boatΒ started its journey from point A to B .After sometime when it is 156 km away from point B it is started to get sinking and passengers...
A man can row at 4 kmph in still water. If the velocity of current is 2 kmph and it takes him 5 hour to row to a place and come back, how far is the place?
If Boat goes 80 km upstream in 4 hours and 60 km downstream in 2 hours, then the speed of the boat in still water is
A man can go on a motor boat with a speed of 15 km/hour in still water, he goes to a certain distance upstream and come back to the starting point in a ...