Question

Answer the following questions

Answer 1

Answer:

Step-by-step explanation:

24.

Let the speed of the train be x.

Distance=300km

Since, speed=distance/time(time be t1 and t2 for second equation)

x=300/t1

hence,t1=300/x

Also,according to the question...

x+5=300/t2

t2=300/x+5

Now,t1-t2=2

300/x + 300/x+5 =2

Nkw solve it...

300(x)+300(x+5)/x^2+5x=2

300x+300x+1500=2(x^2+5)

600x +1500=2x^2+10

2x^2-600x-1490=0

Divide the eq. by 2...

x^2-300x-745=0

Now solve the above equation.....

Sorry I have to go...please don't mind it...