Problems Based on Speed
Solving Statements Involving Speed
Solving Statements Involving Speed: In these types of problems we consider the relative speed of the two objects. When the two objects are moving in the same direction, the relative speed is the difference of the speed of the two objects. When the two objects are moving in the opposite direction , the relative speed is found as the sum of speed of the two objects.
For Example: The distance between two points A and B is 340 Km. Two trains start together one from station A and other from station B , The speed of one train is 5 km/hr more than the other train. If the distance between the two trains after two hours is 30 km. Find the speed of the two trains.
Let the speed of one train = x km/hr
Speed of other train will be = x +5 km/hr
Distance = Speed X time
Distance travelled by first train in two hours = 2x
Distance travelled by the second train in two hours = (x+5) X 2= 2x+10
Distance between the two trains after two hours = 30km
According to the question
Distance travelled by one train + distance travelled by second train + 30 = 340
2x+ 2x+ 10 + 30 = 340
4x+ 40 = 340
4x= 300
x= 75 km/hr
Speed of one train = 75 kmhr
Speed of second train = 75 + 5 = 80 kmhr
An express train covers 240 km at a certain speed. Another train, whose speed is 12 km/hr less, takes an hour longer to cover the same distance. Find the speed of the express train in km/hr. | |||
| Right Option : B | |||
| View Explanation | |||
On a journey of 100km, Meeta travels at a certain speed for the first 60km, and then increases his speed by 15km/h for the remainder. If the whole journey takes 2 hours, find his two speeds. | |||
| Right Option : D | |||
| View Explanation | |||
Students / Parents Reviews [20]
Being a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
Prisha Gupta
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Om Umang
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Upmanyu Sharma
7thIn terms of methodology I want to say that institute provides expert guidence and results oriented monitering supplements by requsite study material along with regular tests which help the students to improve their education skills.The techniques of providing education helps the students to asses...
Aman Kumar Shrivastava
10thThird consective year,my ward is in Abhyas with nice experience of admin and transport support.Educational standard of the institute recumbent at satisfactory level. One thing would live to bring in notice that last year study books was distributed after half of the session was over,though study ...
Ayan Ghosh
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Yatharthi Sharma
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Aman Kumar Shrivastava
10thAbhyas institute is one of the best coaching institute in the vicinity of Ambala cantt.The institute provides good and quality education to the students.The teachers are well experienced and are very helpful in solving the problems. The major advantages of the institute is extra classes for weak...
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Shreya Shrivastava
8thUsually we see institutes offering objective based learning which usually causes a lag behind in subjective examinations which is the pattern followed by schools. I think it is really a work of planning to make us students grab the advantages of modes of examination, Objective Subjective and Onli...
