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Since, the given number is divisible by 12, it must also be divisible by 3 In order to de divisible by 3, the sum of digits of the number must be divisible by 3 as well. Sum of digits of the given number = 3 + 2 + x + 4 + 7 + y = 16 + x + y If, we check the given options, only (x + y) = 11, makes (16 + x + y) divisible by 3 Therefore, (x + y) = 11
A boat covers some distance downstream in 1 hour. It covers 3/2 hours. If the velocity of the stream is 3 kilometers per hour, then what will be the vel...
If the sum of upstream and downstream speed is 20 km/hr and the speed of the current is 5 km/hr. Then find time taken to cover 45 km in downward?
A man can go on a motor boat with a speed of 15 km/hour in still water, he goes to a certain distance upstream and come back to the starting point in a ...
A man rows upstream 10 km and downstream 15 km taking 5 hours each. Find the speed of current.
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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:
A ship covers 96 km upstream and 144 km downstream in 8 hours and 6 hours, respectively. Find the time taken by the same ship to cover 180 km in still w...
The speed of a boat in still water is 32km/hr and the speed of the current is 8km/hr. It takes a total of 15hours to row to upstream from Point A to B a...
The ratio of the speed of boat in upstream to speed of boat in downstream is 7:9. If the boat can cover a total of 70 km upstream and 90 km downstream i...
If a boat travels 35 km more in downstream than in upstream in 5 hr and if the speed of the boat in still water is 25 km/hr, then find the distance trav...
