question number 20 ka answer send me fast
Answers
Answer:
Given:
It is given that the distance between two stations is 300km. And the speed of one motorcyclist is 7km/hr, more than that of the other. The distance between them after 2 hours from their start is 34km.
To Find:
We need to find the speed of each motorcyclist.
Solution:
Let the speed of one motorcyclist be xkm/hr.
Now, as it is given that the speed of one motorcyclist is 7km/hr, more than that of the other so, the speed of other motorcyclist will be (x+7)km/hr.
After two hours, the speed of one motorcycle will be 2x and that if other would be 2(x+7) = 2x + 14.
Now, by question
2x + 2x + 14 + 34 = 300
4x + 14 + 34 = 300
4x + 48 = 300
4x = 300 - 48
4x = 252
x = 252/4
x = 63
Therefore the speed of first motorcycle is x = 63km/hr and the speed of other motorcycle is (x+7) = (63 + 7) = 70km/hr.
JUST GO WORD BY WORD .
FOR THESE TYPE OF QUES ,
1)MAKE DIAGRAM
2) WRITE EQUSTIONS A PER THE STATEMENTS GIVEN