Question

a person speed at a rate of 40 kms per hour if he increase his speed by 20 % what is his new speed in meter per minute?​

Answer 1

Answer:

Original speed is 40 kms per hour

If the speed is increased by 20%, then the new speed is

= 120 % of 40

= 1.2 ⋅ 40

= 48 kms per hour

Now, let us change the speed from kms per hour into meters per minute.

1 hour ------> 48 kms

1 ⋅ 60 minutes ------> 48 ⋅ 1000 meters

60 minutes ------> 48,000 meters

1 minute ------> 48,000 / 60 meters

1 minute ------> 800 meters

So, the speed is 800 meters/minute.

If the person increases his speed by 20%, his new speed in meter per minute is 800.

Answer 2

Answer:

Given : Speed is 40 miles per hour.

The formula to find the time when distance speed are given is

Time = Distance / Speed

Time taken to cover the distance of 160 miles is

Time = 160 / 40

Time = 4 hours

So, the person will take 4 hours to cover 160 miles distance at the rate of 40 miles per hour.

Step-by-step explanation:

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