Description : How do you complete level 5 on wheely 7?
Last Answer : Need answer
Description : How do you pass level 7 on hydro logic?
Last Answer : ...
Description : A train travelling at a speed of 75 mph enters a tunnel 7/2 miles long. The train is 1/4 mile long. How long does it take for the train to pass through the tunnel from the moment the front enters to the moment the rear emerges? A.1 min B.3 min C.5 min D.6 min E.None of these
Last Answer : Answer – B (3 min) Explanation – Actually train is covering length of tunnel + its own length here so total distance = 7/2 + 1/4= 15/4 miles time= distance /speed time= (15/4) / 75 = 1/20 hour (1/20)x60 = 3 min
Description : A train 200m in length, travels at 120 km/hr. In what time it will pass a boy who is walking at 12km an hour. a) against(opposite) it: b) in the same direction? A) 5.4,6.66 B) 7.2,5.2 C) 3.5,6 D) 12,16
Last Answer : ANSWER: A Explanation: I) Speed of the train = 120 km/hr Speed of the boy = 12 km/hr Relative speed = (120 + 12) km/hr Convert km/hr into m/s 132 km/hr = (132 * 5/ 18)m/s = 36.66 m/s Time = ... km/hr = (108 * 5 / 18)m/s = 30 sec Time = distance / speed = 200 / 30 = 6.66 sec
Description : A passenger train 300m long is running with a speed of 136 km/hr. In what time will it pass a boy who is running at 6 km/hr in opposite direction in which the train is moving? A) 8.6sec B) 7.6sec C) 3.6sec D) 2.6sec
Last Answer : ANSWER: B Explanation: Speed of the train = 136 km/hr Speed of boy = 6 km/hr Speed of the train relative to boy = (13 + 6)km/hr = 142 km/hr Convert km/hr into m/s 142 km /hr = (142 * 5 / 18 ... taken bt it to cover 300 m at 39.44 m/s =300 / 39.44 [speed time= distance / speed] = 7.6 sec