A car completes a journey in 10 hours. If it covers half of the journey at 40 kmph and the remaining half at 60 kmph, the distance covered by car is
(A) 380 km
(B) 300 km
(C) 400 km
(D) 480 km
A and B run a kilometre and A wins by 25 sec. A and C run a kilometre and A wins by 275 m. When B and C run the same distance, B wins by 30 sec. The time taken by A to run a kilometre is
(A) 3 min 20 sec
(B) 3 min 30 sec
(C) 2 min 25 sec
(D) 2 min 50 sec
Two cars start at the same time from one point and move along two roads at right angles to each other. Their speeds are 36 km/ hour and 48 km/hour respectively. After 15 seconds the distance between them will be
(A) 300 m
(B) 250 m
(C) 400 m
(D) 150 m
While travelling downstream, a man can row 16 km more in 4 hours as compared to travelling upstream. What is the speed of the stream?
(A) 1.5 km/h
(B) 1 km/h
(C) 2 km/h
(D) 1.25 km/h
(E) None of these
While travelling downstream, a man can row 16 km more in 4 hours as compared to travelling upstream. What is the speed of the stream?
(A) 1.5 km/h
(B) 1 km/h
(C) 2 km/h
(D) 1.25 km/h
(E) None of these
The distance between two places A and B is 370 km. the 1st car departs from place A to B, at a speed of 80 kmph at 10 am and 2nd car departs from place B to A at a speed of 50 kmph at 1 pm. At what time both cars meet each other?
(A) 2 : 30 pm
(B) 2 : 00 pm
(C) 2 : 10 pm
(D) 2 : 20 pm
(E) None of these
The distance between two cities A and B is 330 km. A train starts from A at 8 a.m. and travels towards Bat 60 km / hr. Another train starts from Bat 9 a.m. and travels towards A at 75 km/hr. At what time do they meet?
(A) 10 : 00 am
(B) 10 : 30 am
(C) 11 : 00 am
(D) 11 : 30 am
A and B start at the same time with speeds of 40 km/hr and 50 km/hr respectively. If in covering the journey A takes 15 minutes longer than B, the total distance of the journey is
(A) 46 km
(B) 48 km
(C) 50 km
(D) 52 km
(E) None of these
A truck is moving on the road. It makes 3000 revolutions in moving 3.96 km. What is diameter of the wheel of the truck?
(A) 21 cm.
(B) 14 cm.
(C) 42 cm.
(D) 28 cm.
(E) None of these
Ratio of speed of boat in down stream and speed of stream is 9:1, if speed of current is 3 km per hr, then find distance travelled(in km) upstream in 5 hours.
(A) 105
(B) 110
(C) 120
(D) 90
(E) 95
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