Question

11. The ratio of speeds of two trains is 7:9. If the faster train covers the dust
14 hours, find the time taken by the other train to cover the same distanes​

Answer 1

Answer:

18hours  

Step-by-step explanation:  

let the speeds of the trains be 7x and 9x say... so the train which run fast be 9x  

9x= 630/14  

x=70/14  

=5kmph  

distance is equal  

so  

.Speed=d/t.  

7x = 630/t  

7*5=630/t  

t=90/5  

=18hours