Aran and anil are going to run in a race. Aran runs 7 mph while anil runs at 5 mph. They decide it would be fair if anil got a 1 hour head start. How far apart are they after 3 hours?

They are 41 miles apart after 3 hours.

Step-by-step explanation:

The speed at which Aran runs is

7 mph.

Distance = speed × time

If Aran runs for 3 hours, then the distance that he would cover is

7 × 3 = 21 miles

The speed at which Anil runs is

5 mph. They decide it would be fair if Anil got a 1 hour head start. This means that the total time that Anil spent running is 3 + 1 = 4 hours.

Distance covered by Anil in 4 hours is

5 × 4 = 20 miles

Therefore, the total distance covered after 3 hours is

21 + 20 = 41 miles

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column