ATQ, 800 × 2 × a% + 450 × 4 × (a - 2)% + 1200 × 5 × 5% = 604 16a + 18a – 36 + 300 = 604 34a + 264 = 604 34a = 340 a = 10
Speed of a boat in still water is 6 times more than the speed of stream. If boat covers 112 km in downstream in 8 hours, then find the time taken by the...
A man rows upstream 10 km and downstream 15 km taking 5 hours each. Find the man’s speed in still water.
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A man can row at 4 kmph in still water. If the velocity of current is 3 kmph and it takes him 8 hour to row to a place and come back, how far is the place?
A boat running downstream covers a distance of 45 km in 9 hrs and covering the same distance upstream in 15 hrs. What is the speed of a boat in still wa...
A boat can travel 38 km downstream in 57 min. The ratio of the speed of the boat in still water to the speed of the stream is 3: 2. How much time will t...
Find the total distance covered by boat in each upstream and downstream in 5 hours if the speed of boat in still water and speed of current is 20 km/h a...
The speed of a boat in still water is 16 km/hr. If the boat covers 180 km in upstream in 12 hours, then find the time taken by the boat to travel 170 km...
Speed of boat is 20 km/hr. Speed of the stream is 20% less than speed of boat. Then find time taken by boat to go 90 km downstream.
A boat goes 200 km downstream in 50 hours, and 90 km upstream in 30 hours. The speed of the stream is
