Speed Time and Distance Test Paper 11) A running man crosses a bridge of length 500 meters in 4 minutes. At what speed he is running?
The correct answer is (B) Answer with explanation:
Speed =^{500}⁄_{240}=^{25}⁄_{12}m/s We need answer in km/hr: Speed in km/hr=^{25}⁄_{12}*^{18}⁄_{5}=^{90}⁄_{12}⟶^{30}⁄_{4}= 7.5 km/hr 2) A car running at a speed of 140 km/hr reached its destination in 2 hours. If the car wants to reach at its destination in 1 hour, at what speed it needs to travel?
The correct answer is (B) Answer with explanation: Distance to be covered = Speed x Time = 140 * 2 = 280 km Time = 1 hour Required Speed =^{280}⁄_{1}= 280 km/hr (Option B) 3) A jogger is running at a speed of 15 km/hr. In what time he will cross a track of length 400 meters?
The correct answer is (A) Answer with explanation: 4) A horse covers a distance of 1500 meters in 1 minute 20 seconds. At what speed the horse is running?
The correct answer is (C) Answer with explanation: Distance = 1500 meters Time = 1 minute 20 seconds ⟶60+20=80 seconds So, Required Speed =^{1500}⁄_{80}=^{75}⁄_{4}m/s We need answer in km/hr: So, Speed in km/hr =^{75}⁄_{4}*^{18}⁄_{5}= 67.5 km/hr 5) A cyclist moving at a speed of 20 km/hr crosses a bridge in 2 minutes. What is the length of the bridge?
The correct answer is (D) Answer with explanation: The length of the bridge is equal to the distance covered by the cyclist at a speed of 20 km/hr in 2 minutes. So, Distance = Speed * Time Speed = 20 km/hr Speed in m/s = 20 *^{5}⁄_{18}=^{100}⁄_{18}→^{50}⁄_{9} m/s Time= 2 minutes →2 * 60 = 120 seconds Required distance =^{50}⁄_{9}* 120=^{6000}⁄_{9}= 666.6 meters Speed Time and Distance Aptitude Test Paper 2 Speed Time and Distance Aptitude Test Paper 3 Speed Time and Distance Aptitude Test Paper 4 Speed Time and Distance Aptitude Test Paper 5 Speed Time and Distance Concepts
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