991. If the average marks of three batches of 55, 60 and 45 students respectively is 50, 55, 60, then the average marks of all the students is__________??
A. 53.33
B. 54.68
C. 55
D. None of these

992. A boatman goes 2 km against the current of the stream in 1 hour and goes 1 km along the current in 10 minutes. How long will he take to go 5km in stationery water??
A. 40 Minutes
B. 1 Hour
C. 1 hr 15 Min
D. 1 Hr 30 Min

993. A boat takes half time in moving a certain distance downstream than upstream. What is the ratio between the rate in still water and rate of current??
A. 1 : 2
B. 3 : 1
C. 2 : 1
D. 1 : 3

994. The speed of a boat in still water is 2km/hr. If its speed upstream be 1km/hr then speed of the stream is________??
A. 1.5km/hr
B. 3km/hr
C. 1km/hr
D. none

995. A boat travels upstream from B to A and downstream from A to B in 3 hours. If the speed of the boat in still water is 9km/hr and the speed of the current is 3km/hr, the distance A and B is:_______??
A. 4km
B. 6 km
C. 8 km
D. 12 km

996. A man can row 9 1/3 km/hr in still water and he finds that is thrice as much time to row u p than as to row down the same distance in river. The speed of the current is:________??
A. 3 1/3 km/hr
B. 3 1/9 km/hr
C. 1 ¼ km/hr
D. 4 2/3 km/hr

997. A boatman goes 2 km against the current of the stream in 1 hour and goes 1 km along the current in 10 minutes. How long will it take to go 5 km in stationary water??
A. 40 minutes
B. 1 hour
C. 1 hr 15 min
D. 1 hr 30 min

998. A man can row three-quarters of a kilometre against the stream in 11 minutes and down the stream in 7 minutes. The speed (in km/hr) of the man in still water is:_________??
A. 2
B. 3
C. 4
D. 5

999. Speed of a boat in standing water is 9 kmph and the speed of the stream is 1.5 kmph. A man rows to a place at a distance of 105 km and comes back to the starting point. The total time taken by him is_________??
A. 16 hours
B. 18 hours
C. 20 hours
D. 24 hours

1000. The average age of a husband, wife and their child 3 years ago was 27 years and that of wife and the child 5 years ago was 20 years. The present age of the husband is___________??
A. 19 years
B. 23 years
C. 28.5 years
D. 29.3 years

NOTE
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