Question

A car covers a certain distance in 50 min if it runs in 45 km/hr . How much time will it take to cover the same distance in 30 km/hr​

Answer 1

Answer :

• 75 minutes will it take to cover the same distance in 30km/hr

Given :

• Time = 50 minutes = 50/60 hr
• Speed = 45km/hr

To find :

• How much time will it take to cover the same distance in 30km/hr

Solution :

As we know that ,

• Distance = Speed × Time

where , Speed is 45km/hr and Time is 50/60 hr

》Distance = Speed × Time

》45 × 50/60

》37.5km

Hence , Distance is 37.5km

Now Given that ,

• Same distance in 30km/hr so,

• Distance = 37.5km
• Speed = 30km/hr

As we know that,

• Time = Distance/Speed

》37.5/30

Now we have to convert the time in minutes from hours we get ,

》37.5 × 60/50

》75 minutes

Hence , 75 minutes will it take to cover the same distance in 30km/hr

Answer 2

Answer :

Give ,

Time = 50

speed = 45 km /hr

find,

How much time cover in30 km/ hr ?

Let Now,

Distance = speed X time

Distance = 45 X 50

Distance = 2,250

Let Now,

speed = distance X Time

speed = 30 X ?

45 = 30

45 X 30