Question
There are some assistants and officers in an office, if
15 assistants leave then there are 3 officers for each assistant. After this again 51 officers go and there are 6 assistants for each officer, initially there were assistants. type-sscSolution
Assistance denotes by A and officers denote by F. ATQ- 3(A-15) = F         … (1) (A-15) = F/3 (A-15) = (F-51)6 F/3 = (F-51)6 F/18-F = -51 17F = 51×18 F = 54 Put the value of F in Equation (1) 2A -30 =54 2A =84 A = 42
A boat, whose speed in still water is 25% more than the speed of the current, covers 810 km downstream in _____ hours. The speed of the boat in still w...
A man swims 2km/h against the stream and goes 1 km in 10 minutes along the stream, how much time will it take to cover 5 km in still water?
Speed of a boat in still water to speed of boat in upstream is 8: 7. If the boat can travel 450 km in downstream in 10 hours, then find the time taken b...
Ratio of still water speeds of three boats is 3:4:5. The first boat travels downstream, the second and third boats travel upstream. They travel in strea...
A boat moves in a river where the ratio of the speed of the stream to the downstream speed of the boat is 1:6. If it takes the boat a total of 20 hours ...
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?
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 poin...
When travelling downstream, a boat takes 5.25 hours to travel 252 km. If the speed of the stream is (3/8)th of downstream speed of the boat, ...
A man can row his boat with the stream at 40 km/h and against the stream in 5.5 km/hours. Find the rate of the stream.
Downstream speed of a boat is 16 km /hr. Speed of stream is 40% less than the speed of boat. Find the speed of boat?