Question

John ran the route between the Town
Council and the schoolhouse at a speed
of 30 km/h in 10 minutes. Danny drove his
car on the same road at a speed of 6 km/
h. How long did it take Danny to complete
the distance? (in minutes)
1:58 pm

Answer 1

Answer:

2 minutes

because 3×10 =30

so there for 3×2=6

so 30 km in 10 minutes

so 6 km 2 minutes

Answer 2

Given:

John ran the route between the Town Council and the schoolhouse at a speed of 30 km/h in 10 minutes. Danny drove his car on the same road at a speed of 6 km/h. How long did it take Danny to complete the distance? (in minutes)

To find:

How long did it take Danny to complete the distance? (in minutes)

Solution:

For the 1st case:

John's speed = 30 km/hr

The time taken by John = 10 minutes

Therefore,

The distance covered by John from the Town Council and the schoolhouse is,

= Speed × Time

= 30 km/hr × 10 minutes

∵ $\boxed{\bold {1 \:minute = \frac{1}{60} \:hr}}$

=  $30\:km/hr \times \frac{10}{60} \:hr$

= $\bold{5 \:km}$

For the 2nd case:

Danny's speed = 6 km/hr

Since Danny covers the same distance, so the distance travelled by Danny from the Town Council and the schoolhouse = 5 km

Therefore,

The time taken by Danny to complete the same distance is,

= $\frac{Distance}{Speed}$

= $\frac{5\:km}{6\:km/hr}$

∵ $\boxed{\bold{1 \:hr = 60 \:min}}$

= $\frac{5}{6} \times 60 \:min$

= $\bold{50\:min}$

Thus, it takes Danny 50 minutes to complete the distance.

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Also View:

car covers a distance in 40 minutes with an average speed of 60 km per hour.the average speed to cover the same distance in 25 minutes is​?

brainly.in/question/33449541

AVERAGE SPEED= 72 KM

TIME= 12 SECOND

DISTANCE = ?

FIND DISTANCE​

brainly.in/question/42350939