Boats & Streams Mathematics Tips/Tricks – Quiz Based Question/Answers For SBI Bank Po/Clerk/SSC

6) A train of 300 m is travelling with the speed of 45 km/h when it passes point A completely. At the same time, a motorbike starts from point A with the speed of 70 km/h. When it exactly reaches the middle point of the train, the train increases its speed to 60 km/h and motorbike reduces its speed to 65 kmph. How much distance will the motorbike travel while passing the train completely?
(a) 2.52 km        (c) 2.37 km         (b) 2 km        (d) 3.56 km       (e)None Of these

1) A person can row a distance of one km upstream in 10 mins and downstream in four mins. What is the speed of the stream?
(a) 9 kmph     (b) 4.5 kmph     (c) 4 kmph     (d) 5 kmph      (e) 5.6 kmph

2) A man can row half a km against the current in 12 min and returns in 6 min. Find the speed of the current?
(a) 2.5 kmph     (b) 3 kmph     (c) 1.5 kmph     (d) 1.25 kmph      (e) None of these

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) 2.5 kmph     (b) 3 kmph     (c) 1.5 kmph     (d) 1.25 kmph      (e) None of these

4) A man’s speed with the current is 15 km/hr. and the speed of the current is 2.5 km/hr. Find the man’s speed against the current.
(a) 12 kmph     (b) 10 kmph     (c) 20 kmph     (d) 15 kmph     (e) None of these

5) A swimmer swims from a point against a current for 5 minutes and then swims backwards in favor of the current for next 5 minutes and comes to the Point B. If AB is 100 metres, the speed of the current (in km per hour) is:
(a) 0.8 kmph     (b) 0.5 kmph    (c) 0.6 kmph     (d) 1.5 kmph     (e) None of these

6) A boat running upstream takes 8 hours 48 minutes to cover a certain distance, while it takes 4 hours to cover the same distance running downstream. What is the ratio between the speed of the boat and speed of the water current respectively?
(a) 3 : 8     (b) 8 : 3     (c) 5 : 3     (d) 6 : 1    (e) None of these

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