Question

Mohan travelling in his car with its actual speed of 5/7 covers 168 Kms in 6 hour 43 minutes and 12 seconds. What is the actual speed of his car?

Ii) Had Mohan travelled on actual speed of the car, how much time he would have taken to cover the above distance?​

Answer 1

Answer:

35 km/hr

Step-by-step explanation:

Time taken = 6hr 43 min 12 sec = $6\frac{18}{25}$ hours = $\frac{168}{25\\}$ hrs.

Let the actual speed of the car be x km/hr

Then,

$\frac{5}{7}x$ × $\frac{168}{25\\}$ = 168

⇒ x = ($\frac{168*7*25}{5*168} )$

⇒ x = $\frac{29400}{840\\}$

⇒ x = 35 km/hr

Hope it helps!!!!! :)