Question

How much time will Alex need to walk to his school, which is 2 1/4 miles away from his house, if he would walk with the speed of 3 3/4?

Answer 1

Time taken by Alex to walk to school is 3/5.

Notes:

Hope this helped!

Answer 2

Time taken by Alex to walk to school is 3/5.

Explanation:

`Speed = (Total\ distance\ travelled)/(Time)`

Speed =
`3(3)/(4)` =
`(15)/(4)`

Total distance travelled =
`2(1)/(4) =(9)/(4) miles`

Time taken by Alex to walk to school =
`(total\ distance\ travelled)/(speed)`

Time taken to walk to school =
`((9)/(4) )/((15)/(4) ) = (9)/(4) * (4)/(15) = (3)/(5)`