01) The speed of the current is
5km/h. A motorboat goes 10 km upstream and back again to starting point in min,
the speed (in km/h)of the motorboat in still water
a)
20
b)
26
c)
25
d)
28
02) The current of a stream runs at
the rate of 4km an hour. A boat goes 6km and comes back to the starting point
in 2 hours. The speed of the boat in still water is
a)
6 km/h
b)
8 km/h
c)
7.5 km/h
d)
6.8 km/h
03) A man rows 750 m in 600 seconds
against the stream and returns in 7 ½ minutes. Its rowing speed in still water
is (in km/hr).
a)
5.5
b)
5.75
c)
5
d)
5.25
04) A boat goes 75km upstream in 3
hour and 60km downstream in 1.5 hours. The speed of the boat in still water is:
a)
32.5 km/h
b)
30 km/h
c)
65 km/h
d)
60 km/h
05) A boat moves downstream at the
rate of 8 km/h and upstream at 4 km/h. The speed of the boat in still waters
is:
a)
4.5 km/h
b)
5km/h
c)
6km/h
d)
6.4 km/h
06) A boat goes a certain distance
at 30km/h and comes back the same distance at 60km/h. What is the average speed
(in km/hr) for the total journey?
a)
45
b)
50
c)
40
d)
35
07) A boat travels 32 km/h downstream in 4hours
and 24 km upstream in 6 hours. What is the speed (in km/hr) of boat in still
water
a)
2
b)
4
c)
6
d)
8
08) A boat can row 35 km. upstream
in 7 hr and the same distance downstream in 5 hr. What is the speed (in km/hr)
of the boat in still water?
a)
5
b)
7
c)
9
d)
6
09) The speed of a stream is 3km/hr.
A boat goes 24 km and comes back to the starting point in 6 hours. What is the
speed (in km/hr.) of the boat in still water?
a)
4
b)
9
c)
8
d)
12
10) A boat goes8km upstream and 12km
downstream in 7 hours. It goes 9km
upstream and 18km downstream in 9 hr. what is the speed (in km/hr) of the boat
in still water?
a)
5
b)
4
c)
2
d)
3
Venkatesh
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