Sorry I make a mistake in my last comment.

| Copyright | Terms of Use & Privacy Policy, Contact us: info.india- @ -bix@gma@il.com. a)14 2/5 seconds b)15 seconds c)16 1/2 seconds d)17 seconds, Speed of the train = 50km/hr = 50 x 5/18 m/sec = 250/18 m/sec, Time taken to cross the tree = 200 / (250/18) = 200 x 18/250 = 72/5 = 14.4 seconds, A train of length 80 m. If the speed of the train is 120km/hr, then the time taken to cross a 150 m long wall is: Here the ans is in km/hr. Length of the train … Length of trian - 2nd is = 112m. So why have we added the two? A horse is running alongside the train at a speed of - Answered by a verified Math Tutor or Teacher We use cookies to give you the best possible experience on our website. After solving where get the value of x in km/hr.

3, 3*2-1, 5, 5*4-1, 7, 7*6-1, 9, so the next term must be 9*8-1=71. A man is three times as old as his son. Why should we convert to m/sec as in above problem (x+50)*5/18. * Speed=15 x 18/5 * = 54 - Km/ h. A train 130 metres long and travelling at 45 km/hr can cross a bridge in 30 seconds.

45 km/hr. C. 54 km/hr. = 200 x 18/275 = 8 x 18/11 = 13.09 seconds. But in the above question time write it as it is, without any conversion of time. A train is moving with a speed of 40km/h as soon.As another train going in the opposite direction passes by the window the passenger of the first train starts his stopwatch and note that other train passes the window in 3s. 2(x+16) = (4x+16)  <=> 2x = 16 <=> x = 8.

The speed of the second train is: Let the speed of the second train be x km/hr. Find the length of the bridge.

It is late by 5mins only.

Solution: Speed of the train = 50km/hr = 50 x 5/18 m/sec = 250/18 m/sec. Pointing to a lady a person said, "The son of ... 17. Can anybody solve it easily? An another train is 120 metres long is moving in opposite direction and crosses each other in 6 seconds. How many bananas did he eat on the first day? The speed of the train = 50 mph = 50*1.61 = 80.5 km/hr = 80.5*1000/3600 = 22.36 m/s. 4) Suppose two trains or two objects bodies are moving in the same direction at u m/s and v m/s, where u > v, then their relative speed is = (u - v) m/s. 225miles / 180min = 1,25 * 60min = 75 miles/h" Just change the speed 50 km/hr into m/sec.

How is the lady related to the person? Relative speed = (x + 50) km/hr = (x + 50) x: 5: m/sec: 18 = 250 + 5x: Explanation: As we need to get answer in seconds, so never forget to convert speed into meter per second. A train 200 m long is moving with the speed of 50km per hour.Find the time taken to pass a tree standing near the railway track. How Comes 5 in answer? Hence, son's present age = (x+8) = 16 years. What is the next letter in this sequence OTTFFSS? I can't Understand please explain this. If 20 men build a wall of length 56m in 6 days , what length of a similar wall can be build by 35 men in 3 days? A train 200 m long is moving with the speed of 50km per hour.Find the time taken to pass a tree standing near the railway track. Hence the result is in km/hr. 4. The sum of a positive number and its reciprocal is thrice d difference of d number and its reciprocal. In the equation all the units meter, second get cancelled so the remaining is x only, whose units is km/hr as we have choosen at beginning of the problem. A certain street has 1000 buildings. Hence, the son of lady's brother is brother-in-law of the person. A train 108m long moving at a speed of 50km/hr crosses a train 112m long coming from opposite direction in 6sec.The speed of the 2nd train is??

19.

14. A copper sphere of diameter 9 cm is melted and drawn into a wire of 2 mm diameter. Hey shyam sharma if I do in your method what you said the problem formula not getting answer yar. Rohit's age after 8 years = (4x+8)+8 = (4x+16) years. I would like to bring this error to your notice that it is 82 m/s and not 82 km/hr. Train Problems Solved Questions (Page 2 of 5). SO we have to convert the speed in m/sec as all parameters is in meter & seconds. The sum of a positive number and its reciproca... 13. Son's age after 8 years = (x+8)+8 = (x+16) years. A train 108m long moving at a speed of 50km/hr crosses a train 112m long coming from opposite direction in 6sec.The speed of the 2nd train is??

A train 130 metres long and travelling at 45 k... 18. Let the number be ‘x’. Initially assume that X is in km/hr. Hence the answer is 13 seconds(approximately), Copyright © BankingCareers.in All Rights Reserved. Sir, if the train is moving in an opposite direction the total distance one has to cover is the larger length.

(Length of The Train 1 + Length of the Train 2)(m) = (Speed of the Train1 - Speed of the Train 2) (m/s) × Time taken to cross (s) Formula: ${L_1} + {L_2} = \left( {u - v} \right) \times t$ Case 2: If both are moving in opposite direction a)11seconds b)10seconds c)9seconds d)13seconds, Speed of the train relative to bike (70 - 15) = 55km/hr = 55 x 5/18 m/sec = 275/18 m/sec. Find the number? 120 km is the distance. Length of train 1st is = 108m. A bike and the train are running at a speed of 15km/hr and 70km/hr. A sign maker is contracted to number the houses from 1 to 1000. It is clear from the diagrams that new name of West will become South-East. Why have we assumed x in km/he why not in m/s.
Speed of train 1st is = 50km/h => 50 * 5/18 == 125/9 m/sec. so frm starting onwards we sould calculate. @Karthika , see when we take the series 220/5x+250/18=6 than the 18 will go up side and new series came 220*18/5x+250=6 , so here the formula 18/5 km/h is applicable . 17. ... Answer: Option B. Please solve this part clearly 220/(5x+250)/18=6. Answer: Option B comics © PIXTON.COM. Length of the trains=108+112=220m=(220/1000)=(11/50)km. 2.Running at a speed of 60km/hr,a train passed through a 1.5km long tunnel in 2min.What is the length of the train?

How many bananas did he eat on the first day? Let son's age 8 years ago be x years. But can't do in direct formula of a + b/u + v = t? The length of the wire is??? Time taken to cross the bike = time taken to cross 200 m at 275/18 m/sec a)5 seconds b)3 seconds c)7 seconds d)6 seconds, speed of the train = 120 km/hr = 120 x5/18 m/sec = 100/3 m/sec, Distance covered in passing the long wall = (80+150) = 230 m, Time taken to cross the wall = 230 x 3/100 = 6.9 sec, Hence the answer is 7 seconds(approximately). What are their present ages? 10.

Rohit was 4 times as old as his son 8 years ago.

Therefore, Age of the youngest child = x = 4 years. Therefore, the brother of the lady is the father-in-law of the person. All Rights Reserved. A train of length 100m is moving at a speed of 50km/h.

a)250m b)500m c)1000m d)1500m #.

What is the age of the youngest child?

Lets find the total time first. A train is 100 meter long and is running at the speed of 30 km per hour.

48 km/hr [B]. D. 55 km/hr.