a) 4 : 3 b) 5 : 3 c) 6 : 5 d) 7 : 3 Answer: b Explanation: ...
View QuestionA motorboat in still water travels at a speed of 36 km/hr. It goes 56 km upstream in 1 hour 45 monutes. The time taken by it to cover the same distance down the stream will be-
a) 1 hour 24 minutes b) 2 hour 21 minutes c) 2 hour 25 minutes d) 3 hour
View QuestionThe speed of a boat along the stream is 12 km/hr and against the stream is 8 km/hr. The time taken by the boat to sail 24 km in still water is?
a) 2 hrs b) 4 hrs c) 2.4 hr d) 1.2 hrs Answer: c Explanation: Speed of downstream D = ...
View QuestionA boat covers a certain distance downstream in 1 hour, while it comes back in 1(1/2) hours. If the speed of the stream be 3 kmph, what is the speed of the boat in still water?
A boat covers a certain distance downstream in 1 hour, while it comes back in $$1\frac{1}{2}$$ hours. If ...
View QuestionA man can row at 5 kmph in still water. If the velocity of current is 1 kmph and it takes him 1 hour to row to a place and come back, how far is the place?
a) 2.4 km b) 2.5 km c) 3 km d) 3.6 km Answer: a Explanation: Speed downstream = (5 ...
View QuestionA boat takes 90 minutes less to travel 36 miles downstream than to travel the same distance upstream. If the speed of the boat in still water is 10 mph, the speed of the stream is:
a) 2 mph b) 2.5 mph c) 3 mph d) 4 mph Answer: a Explanation: Let the speed of the ...
View QuestionThe speed of a boat in still water in 15 km/hr and the rate of current is 3 km/hr. The distance travelled downstream in 12 minutes is:
a) 1.2 km b) 1.8 km c) 2.4 km d) 3.6 km Answer: d Explanation: Speed downstream = (15 + ...
View QuestionA boat running downstream covers a distance of 16 km in 2 hours while for covering the same distance upstream, it takes 4 hours. What is the speed of the boat in still water?
a) 4 kmph b) 6 kmph c) 8 kmph d) None of these Answer: b Explanation: ...
View QuestionTwo numbers are in the ratio 17 : 45, One – third of the smaller is less than 1/5 of the bigger by 15. The smaller number is = ?
Two numbers are in the ratio 17 : 45, One - third of the smaller is less than ...
View QuestionIf 20% of A = 30% of B = 1/6 of C, then A : B : C is –
If 20% of A = 30% of B = $$\frac{1}{6}$$ of C, then A : B : C ...
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