Time and Distance Question Practice Question and Answer
8Q: A cow was standing on a bridge, 5m away from the middle of the bridge. A train was coming towards the bridge from the ends nearest to the cow. Seeing this cow ran towards the the train and managed to escape when the train was 2m away from bridge. If it had run in the opposite direction, it would hit by the train 2m before the end of the bridge. What is the lenght of the bridge in meters assuming the speed of the train is 4 times that of cow ? 93321 35b5cc705e4d2b4197774f249
5b5cc705e4d2b4197774f249- 122 mtsfalse
- 228 mtsfalse
- 332 mtstrue
- 434 mtsfalse
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Answer : 3. "32 mts"
Explanation :
Answer: C) 32 mts Explanation: let 'b' be the Length of bridge from cow to the near end of the bridge and 'a' be the distance of the train from the bridge. 'x' be speed of cow => '4x' speed of trainThen the total length of the bridge 2b + 10.(a-2)/4x = b/x=> a-2 = 4b........(1)Now if it had run in opposite direction(a+2b+10-2)/4x = (b+10-2)/x=> a - 2b = 24......(2)Solving (1) and (2)b = 11 , Therefore length of the bridge is 2 x 11 + 10 = 32mts.
Q: Two bikers A and B start and ride at 75 km/hr and 60 km/hr respectively towards each other. They meet after 20 minutes. How far (in km) were they from each other when they started?
1688 05f2a70b057c6a23ea65d97eb
5f2a70b057c6a23ea65d97eb- 160 kmfalse
- 255 kmfalse
- 345 kmtrue
- 450 kmfalse
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Answer : 3. "45 km"
Q: Akhil after travelling 50 km meets Raju who suggests him to go slower. He then proceeds at ¾ of his former speed and arrives at his destination 35 minutes late. Had the meeting occurred 24 km further Akhil would have reached its destination 25 minutes late. What is the initial speed of Akhil? 3163 05b5cc601e4d2b4197774b476
5b5cc601e4d2b4197774b476- 148 kmphtrue
- 236 kmphfalse
- 324 kmphfalse
- 420 kmphfalse
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Answer : 1. "48 kmph"
Explanation :
Answer: A) 48 kmph Explanation: Let the initial speed of Akhil be '4p' kmph Then speed after decrease in speed = '3p' kmph We know that, Change in speed == Change in time According to the given data, 243p - 244p = 35 - 2560=> p = 12 Hence, the initial speed of Akhil = 4p = 4 x 12 = 48 kmph.
Q: A Train when moves at an average speed of 40 kmph, reaches its destination on time. When its average speed becomes 35 kmph, then it reaches its destination 15 minutes late. Find the length of journey. 1318 05d1ee748f5eae22172e6f3af
5d1ee748f5eae22172e6f3af- 130 kmfalse
- 240 kmfalse
- 370 kmtrue
- 480 kmfalse
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Answer : 3. "70 km"
Q: A train is traveling at the rate of 45km/ hr. How many seconds will take to cover a distance of $$ {4\over5} $$ km?
1274 05dbab47b33aa9436e0e6110a
5dbab47b33aa9436e0e6110a- 136 sec.false
- 264 sec.true
- 390 sec.false
- 4120 sec.false
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Answer : 2. "64 sec. "
Q: A runner starts running from a point at 6:00 am with a speed of 8km / hr. Another racer starts from the same point at 8:30 am in the same direction with a speed of 10km / hr. At what time of the day (in P.M.) will the second racer will overtake the other runner?
1367 05dd621517780ee35515abc24
5dd621517780ee35515abc24- 18 : 00false
- 24 : 00false
- 36 : 30true
- 45 : 30false
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Answer : 3. "6 : 30 "
Q: A travels 20 km with a speed of 40 km/hr. He travels another 45 km with a speed of 15 km/hr. what is his average speed for the entire journey?
1162 05eb9428b64cb07648b62d94d
5eb9428b64cb07648b62d94d- 116 km/hr.false
- 222 km/hr.false
- 318.5 km/hr.true
- 421.3 km/hr.false
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Answer : 3. "18.5 km/hr. "
Q: It takes 53 seconds to cross a pole at the end of a 110-meter-long train with a speed of 36 km / h. Find the initial distance of the pole from its front end.
1081 05f97f7aad433054b5c8ac043
5f97f7aad433054b5c8ac043- 1530 meterfalse
- 2420 metertrue
- 31798 meterfalse
- 4640 meterfalse
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