5. A postman traveled from his post office to a village in order to distribute mails. A. Time=[Distance/Speed], Distance = (Speed*Time) 2. x km/hr = [x*5/18] m/sec. The speed of man is 10 km/hr. What was his speed while returning? Calculate speed, distance or time using the formula d = st, distance equals speed times time. Calculator Use. A person takes 20 minutes more to cover a certain distance by decreasing his speed by 20%. We get s = 1 / 2 a t 2. C. 6 h 21 min. Whenever A &B meet, it was found that the ratio of the number of rounds covered by them till then is 3:1.The Time taken by B to complete the race if they meet … If t 3 is the time the swimmer would take to swim a distance 2d in still water, then relation between t 1 … The trip takes 3 hours for a car moving at 40 mph. Time taken to cover 8000 meters distance at the speed of 1000 meters per minute is = 8000 / 1000 = 8 minutes. In this section you can learn and practice Aptitude Questions based on "Time and Distance" and improve your skills in order to face the interview, competitive examination and various entrance test (CAT, GATE, GRE, MAT, Bank Exam, Railway Exam etc.) A. If the train runs at a speed of 100 km/h and the destination is 600 km away from the source, find out the time taken to reach the destination station from the source station. So, if the person increases his speed by 10 kms per hour, he will take 8 minutes to cover 8000 meters distance. This quantity is the Fourier transform of the probability density ˜P(0,t) (r′ , t′ ) for an intermediate portion of a random walk to cover the distance r′ in the time t′ , under the condition that the total walk is closed, returning to the starting point r = 0 after a total time t. Time taken to cover 400 m = 400 × (9/50)sec = 72 sec = 1 (12/60)min = 1 (1/6)min 5. 5. distance in 30 minutes. Hence new time $=7/6$ of usual time It means if he does not take rest, he should walk 5 km. Rajdhani Express halts for 3 minutes every time it covers a distance of 75 km. Let's do some Time and Distance problems, in case you face any difficulty then post a comment in the comments section. with full confidence. If the motorboat travels 80 km along the stream in 1 h 20 min, then the time taken by it to cover the same distance against the stream will be. Answer: B) 1 hr 20 min But the actual time is spent in taking rest every kilometer What is the time taken to cover the distance at his original speed ? Speed is the rate of distance covered per unit of time. 2 kmph The Speed Distance Time Calculator can solve for the unknown sdt value given two known values. A train takes 50 minute for a journey if it runs at 48 km/hr. If the speed of the current is half that of the boat, what is the speed of that boat in kmph ? d w + c = 1 2 d w - c => 2w - 2c = w + c => w = 3c If the ratio of the speeds of A and B is a:b , then the ratio of the times taken by them to cover the same distance is 1: 1 a b or b:a. How long does the trip take for a car moving at 60 mph? According to the question, motorboat takes half time to cover a certain distance downstream than upstream. What is the distance between Alankar’s house and office, if he will reach office late by 20 minutes, … 2 h 55 min -- View Answer: 10). 6 h 23 min. If the ratio of the speeds of A and B is a:b, then the ratio of the times taken by them to cover the same distance is 1/a : 1/b or b:a. 2nd case : Time desired to cover the same distance of 300 km = 4 hours. So, d/(y – x) = 3d/(y + x) y + x = 3y – 3x 4x = 2y x/y = 2/4 = 0.5 A. What should be the speed, if the same journey is to be completed in 3 hours? When you are driving on patrol, you are managing time and distance. Time can be entered or solved for in units of secondes (s), minutes (min), hours (hr), or hours and minutes and seconds (hh:mm:ss). 3. B. Time taken by car to cover 300 km = 5 hours. The time taken by the bike to cover the distance is given by the expression (x+2). A takes 30 minutes more than B to reach the destination. While coming back the boat takes 6 hours to cover the same distance. Time taken by A to cover 200 km = distance/speed = 200/k Time taken by B to cover 200 km = distance/speed = 200/2k Required ratio = 200/k : 200/2k = 1 : 1/2 = 2 : 1 Does it help? A). A body travels at a uniform speed of 20 m/s. Speed of the car = 300/5 = 60 km/hour. Time taken by police man to cover 100m 100 x 1 hr = 1 hr. Answer: Option A. How much time will he take to cover a distance of 5 kilometers. Let the distance being covered be d km Time taken to cover d km upstream = d/(y – x) Time taken to cover d km downstream = d/(y + x) It is given that time taken to go upstream is three times the time taken to go downstream. Distance Distance 1. What is the usual time taken by him to cover that distance? The time it takes to cover the distance between two cities by car varies inversely with the speed of the car. Solution: Distance = 150 km Let the speed of the person while going = x km/hr Then the speed while returning = (x + 10) km/hr The time taken to cover the same distance up and down the stream is t 2. 2 h 40 min : D). Find the distance travelled by the body in 10 s. Given: … Discuss: answer with explanation. 0 0. We measure time and distance by using the car's speedometer which indicates speed measured in miles per hour (mph), the time it takes to cover a given distance. A boat has to travel upstream 20 km distance from point X of a river to point Y. In covering a certain distance, the speeds of A and B are in the ratio of 3 : 4. 15 Why Aptitude Time and Distance? Time = Distance / Speed. Question 1170850: The distance covered by a bike is given by the expression x²+3x+2. 3 h 40 min : C). How many minutes Raman will take to cover a distance of 400 meters if he runs at a speed of 20 km/hr ? $1$ hr $12$ min: B. A). With a speed of 60 km/h, it takes 4 hours to cover a certain distance. The SI unit for speed is meters per second. It covers the distance in 10 hours moving upstream. It's a natural unit of reference that everyone is familiar with in driving discussions. The base, or SI, unit is metres per second, but … 10. 3 rpm 20 s 3 minutes 0.33 seconds A student repeatedly measures the time taken by an object to cover a certain distance and obtains the following data: t_1 = 2.432 s. t_2 = 2.392 s. t_3 = 2.402 s. t_4 = 2.412 S. t_5 = 2.424 s The instrument uncertainty is 0.001 s What should the student report as the absolute uncertainty m the measurement? a. Sohail covers a distance by walking for 6 hours. I walk a certain distance and ride back taking a total time … An object can have a speed of any number 0 or greater. Suppose a man covers a certain distance at x km/hr and an equal distance at y km/hr. The unit for speed is distance over time, as it is defined as the amount of time it takes an object to cover a particular distance. 4 h 20 min : B). 1000 2 20 In 1 hrs, the thief covers a distance of 8 x 1 km = 2 km = 400 m 20 20 5 Ex.13. What is the time it covers the same distance in still water? If he returned at a speed of 10 km/hr more than the speed of going, what was the speed per hour in each direction ? A boat running downstream covers a distance of 30 kms in 2 hours. Ques 1. Find the speed of the bike Answer by math_tutor2020(68) (Show Source): Time, Speed and Distance Exercise - Mathematics or Quantitative Aptitude Questions Answers with Solutions for All other Competitive Exams. The time taken by a person to cover 150 km was 2.5 hrs more than the time taken in the return journey. Problem 9 : A … Speed = Time , Time= Speed , Distance = (Speed * Time) 2. x km / hr = x * 5 18 3. x m/sec = (x * 18/5) km /hr 4. 6 h 22 min. 2 mins b. Explanation: New speed $=6/7$ of usual speed Speed and time are inversely proportional. The time taken by A to reach the … While returning, his speed decreases by 2kmph and he takes 9 hours to cover the same distance. The rate at which the train must run to … Here u=0m/s. A boat covers a given distance in 6 hours moving downstream on a river. D. 4. x m/sec = [x*18/5] km/hr. where s is the distance covered, u is the initial velocity,a is the acceleration and t is the time, we get the distance (in m) covered at any time t (in seconds). Speed is a scalar measurement, meaning the direction of movement of an object cannot be determined by just knowing the speed. Given any s<200km you can now find the time it takes to cover that distance. $2$ hr: C. $1$ hr: D. $1$ hr $42$ min: View Answer. He started on his … … To travel upstream 20 km distance from point x of a river covers! Speed speed and distance Exercise - Mathematics or Quantitative Aptitude Questions Answers with Solutions for All other Competitive.. * time ) 2. x km/hr and an equal distance at Y km/hr if it runs at a speed 20.: 4 distance, the speeds of a and B are in the ratio of 3: 4 many Raman...: New speed $ =6/7 $ of usual speed speed and time are inversely.... The SI unit for speed is meters per second the trip take for a moving... 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