11.50%
12.50%
13%
13.50%
A man can do a piece of work in 5 day, but with the help of his son, he can do it in 3 days. In what time can the son do it alone ?
A man can row 15 km/h in still water and he finds that it takes him twice as much time to row up than as to row down the same distance in the river. The speed of current (in km/h)
A man can row against the current three fourth of a kilometer in 15 minutes and returns the same distance in 10 minutes. The ratio of his speed to that of current is
A man can row at 5 kmph in still water. If the velocity of current is 1 kmph and it takes him 1 hour to row to a place and come back, how far is the place?
A man can row three-quarters of a kilometer against the stream in 11 1/4 minutes and down the stream in 7.5 minutes. The speed (in km/hr) of the man in still water is:
A man can row upstream at 10 km/hr and downstream at 16 km/hr. The speed of the stream is
A man completes 30 km of a journey at 6 km/h and the remaining 40 kilometre in 5 h. his average speed for whole journey is
A man completes a certain journey by a car. If he covered 30% of the distance at the speed of 20kmph. 60% of the distance at 40km/h and the remaining of the distance at 10 kmph, his average speed is:
A man covers a certain distance on scooter. Had he moved 3 km/h faster, he would have taken 40 min less. If he had moved 2 km/h slower, he would have token 40 min more. The distance (in km) is
A man covers half of his journey at 6 kilometre per hour and the remaining half at 3 kilometre per hour his average speed is
