(A) 11.14 Km/h
(B) 12.87 Km/h
(C) 14.86 Km/h
(D) 16.54 Km/h
Tag: mathematics mcqs
In a 2280 m race Smith beats David by 360 m or 6 seconds. In another race on the same track at the same speeds. David and Mark start at one end while Smith starts at the opposite end. How many metres would David have covered ,by the time Smith meets Mark given that Smith speed is 16 m/sec more than that of Mark?
(A) 1140 Metres
(B) 1180 Metres
(C) 2280 Metres
(D) 2460 Metres
A fisherman rows to a place 24 km distance and back in 7 hours. He finds that he can row 2 km with the stream in the same time 1.5 km against the stream. The rate of the stream is?
(A) 1 Kmph
(B) 2 Kmph
(C) 3 Kmph
(D) 4 Kmph
A girl can row 15 kmph in still water and he finds that it takes him thrice as long to row up as to row down the river. Find the rate of stream?
(A) 2.4 Km/h
(B) 5.6 Km/h
(C) 7.5 Km/h
(D) 8.9 Km/h
A woman rows to a place 24 km distant and come back in 7 hours. She finds that she can row 2 km with the stream in the same time as 1.5 km against the stream. The rate of the stream is?
(A) 1 Km/h
(B) 2 Km/h
(C) 2.5 Km/h
(D) 3 Km/h
A boy rows 1500 m in 1350 seconds against the stream and returns in 15 minutes. His rowing speed in still water is?
(A) 3 Km/h
(B) 4 Km/h
(C) 5 Km/h
(D) 8 Km/h
A motor boat can row to a place 112 km away and come back in 44 hours. The time to row 42 km with the stream is same as the time to row 24 km against the stream. Find the speed of boat in still water?
(A) 2.3 Km/h
(B) 3.5 Km/h
(C) 5.5 Km/h
(D) 6.7 Km/h
A boatman can take the same time to row 6.5 km downstream and 3.5 km upstream. His speed in still water 2.5 km/hr. The speed of the stream is.
(A) 0.56 Km/h
(B) 0.60 Km/h
(C) 0.75 Km/h
(D) 0.90 Km/h