Question

Tony has 50 miles to his destination after 21 minutes of driving and he has 40.4 miles to his destruction after 33 minutes of driving. How many miles will he have to his destination after 37 minutes of driving?

Answer 1

37.2 miles from starting point is the answer.

If he was driving after 37 min from point 33 minutes then we would add on 37 mins and find what 1 minute is and multiply it by 4.

Where below shows 1 minute = 0.8 miles

0.8x 4 = 3.2 miles.

40.4- 3.2 miles = 37.2 miles.

29.6 miles

But the answer is 4 more minutes from 33 as the question only shows what 50 miles is and how long 40.4 miles took

As we find 37 minutes = 9.6 + 9.6 +9.6 + 0.8 = 29.6 miles.

Explanation:

50 miles left = 21 mins

40.4 miles left = 33 mins

33-21 = 12 mins

12 mins = 9.6 miles as this was the difference.

6 mins = 4.8 miles

3 mins = 2.4 miles.

1 mins = 2.4 x 1/3 = 0.8 miles

We then distribute to find 37 minutes

12 mins + 12 mins + 12 mins + 1 mins = 37 minutes

Is the same as 9.6 + 9.6 + 9.6 + 0.8 miles = 29.6 miles = 29.6 miles.

Answer 2

37.2

Explanation:

After driving 21 minutes, he has 50 miles to go.

After driving 33 minutes, he has 40.4 miles to go.

Between 21 minutes and 33 minutes, he drove for 33 min - 21 min = 12 minutes.

In those 12 minutes of driving, he drove from a distance of 50 miles to a distance of 40.4 miles to his destination.

50 miles - 40.4 miles = 9.6 miles.

He drove 9.6 miles in 12 minutes.

We can find his speed in miles per minute.

(9.6 miles)/(12 minutes) = 0.8 miles/minute

The time after 37 minutes of driving is 4 minutes after the time after 33 minutes of driving, so he is driving 4 minutes more than when he was 40.4 miles from his destination.

0.8 miles/minutes * 4 minutes = 3.2 miles

He drove 3.2 miles in 4 minutes.

He was 40.4 miles away from his destination at 33 minutes. He is 3.2 miles closer at 37 minutes.

40.4 miles - 3.2 miles = 37.2 miles

Answer: He has 37.2 miles to his destination after 37 minutes of driving.