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Here are solutions to number system questions. We will now proceed to the chapter on number systems, where we will learn the fundamentals of various types of numbers and their applications. You must have learned about different classifications of numbers in number theory, such as whole and natural numbers,
Math is a very theoretical subject, and at times it can be stressful. However, if you practice enough, you can easily comprehend mathematical concepts. We have provided important mathematics questions and answers to help you understand this.
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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 ?90.5K 3 5b5cc705e4d2b4197774f249
- 122 mtsfalseCorrectWrong
- 228 mtsfalseCorrectWrong
- 332 mtstrueCorrectWrong
- 434 mtsfalseCorrectWrong
- Show AnswerHide Answer
Answer : 3 32 mts
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.