Selina solutions
Selina solutions
Selina solutions
CHAPTERS
1. Number System (Consolidating the Sense of Numberness)
3. Numbers in India and International System (With Comparison)
5. Natural Numbers and Whole Numbers (Including Patterns)
6. Negative Numbers and Integers
12. Proportion (Including Word Problems)
17. Idea of Speed, Distance and Time
18. Fundamental Concepts (Algebra)
19. Fundamental Operations (Related to Algebraic Expressions)
20. Substitution (Including Use of Brackets as Grouping Symbols)
21. Framing Algebraic Expressions (Including Evaluation)
22. Simple (Linear) Equations (Including Word Problems)
23. Fundamental Concepts (Geometry)
25. Properties of Angles and Lines (Including Parallel Lines)
26. Triangles (Including Types, Properties and Construction)
30. Revision Exercise on Symmetry (Including Constructions on Symmetry)
32. Perimeter and Area of Plane Figures
A train whose length is 150m, passes a telegraph pole in 10 sec. Find the speed of the train in km/h.
Solution
Transcript
Solution 2:
Distance= 150m
Time taken= 10sec
Speed= \frac{150}{10}=15m/s
=\frac{15\times60\times60}{1000}km/h
=54km/h
"Today we are going to solve the following question whose length is 150 meters passes a telegraph pole in 10 seconds sighing the speed of the training kilometer per hour. So we have to keep in mind in this question that information given involved land and crime is in meter and second while we are going Under speed in kilometers per hour. Also, we have to keep in mind the length of the train is 150 meters. So since that plane passing through a telegraph pole and we have to find the speed Violet purple to the telegraph cable. So the distance covered in this case will be the length of the train. So 150 meter that is equal to Assistance travel that is equal to 150 meters is equal to 150 by thousand kilometers 120 meter is equal to 2,000 meters and seconds. So we will convert it into minutes by dividing by 60 and then we will further converted into our graduating it further 60 so 10 by 16 to 16 hours. So now we have the distance we are trying so we'll Define the speed by dividing the skull travel by Dividing and multiplying we get 54 km/h. So the speed of the train is 54 km/h to students. If you have any questions, drop a comment below and subscribe to the channel for regular updates. Thank you. "
Still have questions? Our expert teachers can help you out
Book a free class nowNumber System (Consolidating the Sense of Numberness)
Numbers in India and International System (With Comparison)
Natural Numbers and Whole Numbers (Including Patterns)
Proportion (Including Word Problems)
Idea of Speed, Distance and Time
Fundamental Concepts (Algebra)
Fundamental Operations (Related to Algebraic Expressions)
Substitution (Including Use of Brackets as Grouping Symbols)
Framing Algebraic Expressions (Including Evaluation)
Simple (Linear) Equations (Including Word Problems)
Fundamental Concepts (Geometry)
Properties of Angles and Lines (Including Parallel Lines)
Triangles (Including Types, Properties and Construction)
Revision Exercise on Symmetry (Including Constructions on Symmetry)
Perimeter and Area of Plane Figures
A train whose length is 150m, passes a telegraph pole in 10 sec. Find the speed of the train in km/h.
Solution
Transcript
Solution 2:
Distance= 150m
Time taken= 10sec
Speed= \frac{150}{10}=15m/s
=\frac{15\times60\times60}{1000}km/h
=54km/h
"Today we are going to solve the following question whose length is 150 meters passes a telegraph pole in 10 seconds sighing the speed of the training kilometer per hour. So we have to keep in mind in this question that information given involved land and crime is in meter and second while we are going Under speed in kilometers per hour. Also, we have to keep in mind the length of the train is 150 meters. So since that plane passing through a telegraph pole and we have to find the speed Violet purple to the telegraph cable. So the distance covered in this case will be the length of the train. So 150 meter that is equal to Assistance travel that is equal to 150 meters is equal to 150 by thousand kilometers 120 meter is equal to 2,000 meters and seconds. So we will convert it into minutes by dividing by 60 and then we will further converted into our graduating it further 60 so 10 by 16 to 16 hours. So now we have the distance we are trying so we'll Define the speed by dividing the skull travel by Dividing and multiplying we get 54 km/h. So the speed of the train is 54 km/h to students. If you have any questions, drop a comment below and subscribe to the channel for regular updates. Thank you. "
Still have questions? Our expert teachers can help you out
Book a free class nowLido
Courses
Race To Space
Quick Links
Terms & Policies
Terms & Policies