a) 2 km/hr
b) 2.1 km/hr
c) 1.1 km/hr
d) 1.4 km/h
e) None of these
2. A boat moves downstream at the rate of one km in 7(1/2) minutes and upstream at the rate of 5 km an hour. What is the velocity of current?
a) 1.3 km/hr
b) 1.2 km/hr
c) 1.6 km/hr
d) 1.5 km/hr
e) None of these
3. A person rows a kilometre down the stream 10 minutes and upstream in 30 minutes. Find velocity of the stream.
a) 1 km/hr
b) 2 km/hr
c) 3 km/hr
d) 4 km/hr
e) None of these
4. A man can row three quarters of a km against the stream in 11 minutes 15 seconds ad return in 7 minutes 30 seconds. Find the speed of the man in still water and also the speed of the stream
a) 5 km/hr, 2 km/hr
b) 5 km/hr, 1 km/hr
c) 6 km/hr, 2 km/hr
d) 4 km/hr, 1 km/hr
e) None of these
5. A boat's man goes 48 km downstream in 8 hours ad return back in 12 hours. Find the speed of the boat in still water and the rate of the stream.
a) 5 km/hr, 1 km/hr
b) 10 km/hr, 2 km/hr
c) 6 km/hr, 1.5 km/hr
d) can't be determine
e) None of these
6. A boat moves with a speed of 11 km per hour ad along the stream and 7 km per hour against the stream. The rate of the stream is ______km/hr.
a) 1 km/hr
b) 1.5 km/hr
c) 2 km/hr
d) 2.5 km/hr
e) None of these
7. A man rows upstream 11 km ad downstream 26 km tak-ing 5 hours each time. The velocity of the current is _______ km/hr.
a) 1 km/hr
b) 1.3 km/hr
c) 1.5 km/hr
d) 2.5 km/hr
e) None of these
8. A boat moves downstream at the rate of 1 km in 6 minutes and upstream at the rate of 1 km in 10 minutes. The speed of the current is
a) 2 km/hr
b) 1 km/hr
c) 1.5 km/hr
d) 2.5 km/hr
e) None of these
9 The speed of a boat downstream is 15 km/hr and the speed of the stream is 1.5 km/hr. The speed of the boat upstream is
a) 13.5 km/hr
b) 16.5 km/hr
c) 12 km/hr
d) 8.25 km/hr
e) None of these
10 If a man's rate with the current is 12 km/hr and the rate of current is 1.5 km/hr, then the man's rate against the current is
a) 9 km/hr
b) 6.75 km/hr
c) 5.25 km/hr
d) 7.5 km/hr
e) None of these
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