1.
A boat can travel with a speed of 13 km/hr in still water. If the speed of the
stream is 4 km/hr, find the time taken by the boat to go 68 km downstream.
A. 2 hours B. 3 hours
C. 4 hours D. 5 hours
2.A
man can row upstream at 8 kmph and downstream at 13 kmph. The speed of the
stream is :
[A]
2.5 km/hr
[C]
5 km/hr
[B]
4.2 km/hr
[D]
10.5 km/hr
3. A boat can travel with a speed of 13 km
/ hr in still water. If the speed of the stream is 4 km / hr. find the time
taken by the boat to go 68 km downstream?
A. 2
hours B.
3 hours
C. 4
hours D.
5 hours
4.A
boat takes 19 hours for travelling downstream from point A to point B and
coming back to point C midway between A and B. If the velocity of the stream is
4 kmph and the speed of the boat in still water is 14 kmph, what is the
distance between A and B?
[A]
160 km
[C]
200 km
[B]
180 km
[D]
220 km
5.
If anshul rows 15 km upstream and 21 km downstream taking 3 hours each time, th’en
the speed of the stream is : . [C.B.I. 1993]
1
km/hr 2 km/hr
1.5
kin/hr 12 km/hr
6.
A man's speed with the current is 15 km/hr and the speed of the current is 2.5
km/hr. The man's speed against the current is:
A. 8.5 km/hr B. 9 km/hr
C. 10 km/hr D. 12.5 km/hr
7. The speed of a boat in still water is 15
km/hr and the rate of current is 3 km/hr. The distance travelled downstream in
12 minutes is
A. 1.2
km B.
1.8 km
C. 2.4
km D.
3.6 km
8.
A boat takes 4 hours for travelling downstream from point A to point B aild
coming back to point A upstream. If the velocity of the stream is 2 kmph and
the speed of the boat in still water is 4 kmph, what is the distance between A
and B? . [Bank P0. 1991]
4
kms 8 km
6
km 9 km
9.A
man rows downstream 33 km and upstream 27 km taking 3 hrs each time. What is
the velocity of the current?
[A]
3
[C]
1
[B]
5
[D]
1.5
10.
A boat covers 24 km upstream and 36 km downstream in 6 hours while it covers 36
km upstream and 24 km downstream in 6 hours. The velocity of the current is :
1
km/hr 2 km/hr
1.5
km/hr 2.5 km/hr
