X and Y run a 3 km race along a circular course of length 300 m. Their speeds are in the ratio 3:2 If they start together in the same direction, how many times would the first one pass the other (the start-off is not counted as passing?
UPSC-2022
A man completes 7/8 of a job in 21 days. How many more days will it take him to finish the job if quantum of work is further increased by 50%?
UPSC-2021
W can do 25% of a work in 30 days, X can do 1/4 of the work in 10 days, Y can do 40% of the work in 40 days and Z can do 1/3 of the work in 13 days. Who will complete the work first?
UPSC-2016
A and B walk around a circular park. They start at 8 a.m. From the same point in the opposite directions. A and B walk at a speed of 2 rounds per hour and 3 rounds per hour respectively. How many times shall they cross each other after 8.00 a.m. and before 9.30. a.m. ?
UPSC-2016
A train 200 metres long is moving at the rate of 40 kmph. In how many seconds will it cross a man standing near the railway line?
UPSC-2018
P works thrice as fast as Q, whereas P and Q together can work four times as fast as R. If P, Q and R together work on a job, in what ratio should they share the earnings?
UPSC-2017
