Mathematics MCQs

Page No. 54

A man swims downstream 30 km and upstream 18 km taking 3 hours each time, what is the speed of the man in still water?


a2 kmph


b8 kmph


c16 kmph


d4 kmph


View Answer 8 kmph

A man swims downstream 72 km and upstream 45 km taking 9 hours each time; what is the speed of the current?


a3 kmph


b1.5 kmph


c13 kmph


d6.5 kmph


View Answer 1.5 kmph

A man can row 6 kmph in still water. When the river is running at 1.2 kmph, it takes him 1 hour to row to a place and black. How far is the place?


a3.12 km


b2.88 km


c3 km


d2 km


View Answer 2.88 km

A man can row 6 kmph in still water. When the river is running at 1.2 kmph, it takes him 1 hour to row to a place and black. What is the total distance traveled by the man?


a6.24 km


b6 km


c5.76 km


d5.66 km


View Answer 5.76 km

The current of a stream runs at the rate of 4 kmph. A boat goes 6 km and back to the starting point in 2 hours, then find the speed of the boat in still water?


a10 kmph


b21 kmph


c8 kmph


d12 kmph


View Answer 8 kmph

A man whose speed is 4.5 kmph in still water rows to a certain upstream point and back to the starting point in a river which flows at 1.5 kmph, find his average speed for the total journey?


a8 kmph


b4 kmph


c2 kmph


d10 kmph


View Answer 4 kmph

The current of a stream at 1 kmph. A motor boat goes 35 km upstream and back to the starting point in 12 hours. The speed of the motor boat in still water is_________?


a6 kmph


b7 kmph


c8.5 kmph


d8 kmph


View Answer 6 kmph

The speed of a boat in still water is 60kmph and the speed of the current is 20kmph. Find the speed downstream and upstream?


a35, 25 kmph


b80, 40 kmph


c40, 60 kmph


d50, 55 kmph


View Answer 80, 40 kmph

The speed of a boat in upstream is 60 kmph and the speed of the boat downstream is 80 kmph. Find the speed of the boat in still water and the speed of the stream?


a70, 10 kmph


b35, 27 kmph


c50, 60 kmph


d45, 55 kmph


View Answer 70, 10 kmph

A man rows his boat 85 km downstream and 45 km upstream, taking 2 1/2 hours each time. Find the speed of the stream?


a5 kmph


b6 kmph


c7 kmph


d8 kmph


View Answer 8 kmph

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