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There is only one rail track between stations A and B on a railway line. One hour after the northbound superfast train N leaves station A for station B, the southbound passenger train S reaches station A from station B. The speed of superfast train is twice that of express train E, while the speed of passenger train S is half of that of train E. On some one day train N leaves from station A to station B 20 minutes late than its usual schedule. Both Train N and Train S have increased their speed to maintain the schedule as per the table. If the superfast train doubles its speed, then what should be the ratio (approximately) of the speed of the passenger train to the speed of the superfast train so that the passenger train reaches the station on that day at the exact scheduled time.
You are given a question and two statements. Idientify which of the statements is/are sufficient to answer the question. Question: In a city, some people travel to work by bus, some people travel to work by train, some people travel to work by both bus and train, and some travel to work neither by bus, nor by train. The number of people who travel to work by both bus and train is how much less than the number of people who travel to work by neither? Statements: (1) In the city, there are 384 people who travel to work by bus. (2) In the city, there are 672 people who travel to work by train,
Each question presents a situation and asks you to make a judgement regarding that particular circumstance. Choose an answer based on given information. Three friends are waiting for a train on the railway station. Suddenly, a train passes by and each of them tries to remember the train number of the train written on each of the coaches. The train number was a 5-digit number. All must agree in order to confirm the digit of train number. 1. All three agrees that all the digits of the train number was different. 2. All three agrees that the difference of 3rd and 5th digit from left is equal to the 4th digit from the left. 3. All three agrees that the 1st digit was 1. 4. All three agrees that the 2nd digit was an even prime number. Which of the following would be most likely the train number?
A goods train and a passenger train are running in same distance with a speed in the ratio of 7 : 9. The driver of the goods train observed that the passenger train coming from backward difference and crossed his train completely in 80 sec whereas a passenger on the passenger train observed that he crossed the goods train in 55 sec; Find the ratio of their length?
The speed of car is S km/hr running on the road besides a railway track. If the speed of the train is (S + 144) km/hr and car is D meter distance ahead of the engine of train. The train will pass the car in 21 seconds. If the speed of the car is 60 km/hr and the speed of the train is (S + 110) km/hr. The car is (D – 240) meter distance ahead of the engine of the train and the train will pass the car in 20 seconds. The length of the train is (D + 160) m. Then, what is the value of S?
Ragini reaches the station at 2:00 in the afternoon. She has to take a train to Aligarh. There are four trains. Train A, Train B, Train C, Train D scheduled for departure at 17:05, 04:32, 18:30 and 19:15 respectively. Which train must she take so that she spends minimum amount of time waiting for the train?
Two trains start from the same point simultaneously and in the same direction. The first train travels at 40 km /h, and the speed of the second train is 25% more than the speed of first train. Thirty minutes later, a third train starts from same point and in the same direction. It over takes the second train 90 minutes later than it overtook the first train. What is the speed of the third train?
As soon as a passenger train enters the platform, a stray dog starts chasing the train till the end of platform. The train was 200 m long. The platform was 1600 m long. Driver of the train however finds that the dog is not running at all, only pretending to run as neither it moves ahead nor lags behind during the whole time train crosses the platform. But a person standing on the platform tells that the dog was running at a speed of 60 m/s. What was the speed of the train?
The following question has three statements. Study the question and the statements and decide which of the statement(s) is necessary to answer the question. A 183 m long train starts its journey from station to station B at a constant speed. Find the speed of the train. I) During its journey, the train crosses a pole in 9.15 seconds. II) During its journey, the train crosses a bridge in 13 seconds. III) The train reaches station B 120 km apart in 5/3 hours without any stoppages.
Given below are two quantities named 1 and 2. Based on the given information, you have to determine the relationship between the two quantities. You should use the given data and your knowledge of Mathematics to choose between the possible answers. Quantity 1: P and Q can do a work in 6 days and Q and R can do a work in 60/7 days and P and R can do a work in 20/3 days. If Q and R work for first 2 days and left the work. Find the total time taken by P to complete the remaining work. Quantity 2: A and B can do a work in 8/3 days, B and C can do the same work in 3 days and A and C can do the same work in 24/5 days. In what time C alone can complete the work?