Question

A car travels 90km in 4 hours, how much will it take to travel 450km​

Answer 1

Answer:

$distance = 90 \: km \\ time = 4 \: hrs \\ 1 \: km = \frac{4}{90} \\ 450 \: km \: = \frac{4}{90} \times 450 = 20 \: hr$

Step-by-step explanation:

I hope it helped you

Answer 2

Given: A car travels $90$km in $4$hours.

We have to find how will it take to travel $450$km​.

As we know that the formula is used to calculate the speed is:

$Speed=\frac{Distance}{Time}$

By using the above concept, we are solving the given problem.

We are solving in the following way:

We have,

Distance = $90$km,

Time = $4$hours.

So, the speed of the car will be:

$Speed=\frac{Distance}{Time}$

$=>Speed=\frac{90}{4} \\\\=>Speed=\frac{45}{2} \\\\=>Speed=22.5 km/hr$

Hence, the speed of the car is$22.5\ km/hr$.

So, the time required to travel $450$km​ will be:

$=>22.5=\frac{450}{Time} \\\\=>22.5\times Time=450\\\\=>Time =\frac{450}{22.5} \\\\=>Time=20hr$

Hence, it will take$20\ hr.$ to complete the distance of $450$km.