Question

Vrunda drives a drives a car at a speed of 80 km/hour to cover a distance of 720kms.If she drives at a speed of 90 km / hour, then how much time will she save to cover the same distance ?



plz.........answer I will mark right answer as brainlist​

Answer 1

Time = Distance/speed =720/9
Ans is 8 hours

Answer 2

Answer:

1 hour

Step-by-step explanation:

first of all we need to find time of both cases

i.e.

CASE 1 :-.

speed of the car = 80km/h

distance to cover = 90km/h

so, time taken is

$time = \frac{distance}{speed}$

i.e.

$= \frac{720}{80}$

$= 9 \: hours$

CASE 2 :--

speed of the car = 90 km/h

distance to cover = 720 km

so, time taken is

$time = \frac{720}{90}$

$= 8 \:hours$

So, time saved = time taken in case 1 - time taken in case 2

i.e.

time saved = 9 - 8

= 1 hours

therefore time saved is 1 hours.

pls mark it brainliest

#BAL#answerwithquality