A train covers a distance of 78 km at x km per hour at the speed been x - 5 kilometre per hour the time taken to cover the same distance would have been increased by 1 hour write down an equation index and solve it to equal value of x
samalok09:
are u sure the values are correct??
Answers
Answered by
0
Answer:
Step-by-step explanation:
Let x be the speed of the train
780÷x -780÷x+5 = 1
78(x-5)-78x = 1
78x-390-78x=xsquare-5x
-390=x square-5x
X square-5x+390=0 is a QE
Solve by any method
I don't know whether it is correct or not.
Answered by
0
Answer:Solve it further to get the value of x
Step-by-step explanation:
Attachments:
Similar questions