Question

please answer this question and also tell how

Answer 1

Speed=distance/time.

Given,

distance=1140km,speed=60km/hr.

60=1140/t

t=1140/60 (hrs)

t=19 hours.

Answer 2

Important Formula's:

(i) Speed = Distance/Time.

(ii) Distance = Speed * Time

(iii) Time = Distance/Speed.

Now,

Given, Speed = 60 km/hr.

Given, Distance = 1140 km.

On applying the (iii) formula, we get

⇒ Time = 1140/60

             = 19 hrs.

Therefore, Time = 19 hrs.  ----- Option (b).

Hope this helps!