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Present age of Arvind = 67 – 19 = 48 years Present age of Ravi = 48 + 4 = 52 years Now, ratio between the ages of Samar and Ravi = 9:13 Since, Ravi’s age = 52 years Therefore, 13 unit = 52 years 1 unit = 4 years Similarly, Samar’s present age = 9 × 4 = 36 years Samar age 13 years ago = 36 – 13 = 23 years
The respective ratio between the time taken by a boat to travel the same distance downstream in stream A and that in stream B is 7 : 5. The speed of the...
A boat takes 7 hours to cover 245 km upstream and 9 hours to cover 477 km downstream. Find the time taken by the boat to cover 410 km upstream and 495 k...
A boat traveled a distance of 135 km from point 'A' to point 'B' and then returned to point 'A,' completing the entire journey in 54 hours. The boat's s...
A boat running downstream covers a distance of 24 km in 3 hrs while it covers the same distance upstream in 6 hrs. Then speed of the boat in still water is
A man can row 25/2 km an hour in still water and he finds that it takes him thrice as long as long to row down the river. The rate of stream is:
The ratio of the speed of boat ‘A’ in still water, the speed of boat ‘B’ in still water and the speed of the current is 7:5:2, respectively. If ...
The speed of a boat in still water is 6 km/hr more than that of the current. The time taken by the boat to cover 625 km downstream is 12.5 hours. Find t...
Speed of a boat in still water to speed of boat in upstream is 10:7. If the boat can travel 390 km in downstream in 5 hours, then find the time taken by...
A boy can swim in water with a speed of 13 km/hr in still water. If the speed of the stream is 5 km/hr, what will be the time taken by the boy to cover ...
