Tom, Sam and Victor are painting the rooms in their new house. It takes Tom 4 hours to paint one room, but Sam and Victor take 3 hours each. If all of them work together, how long does it take them to paint one room?

The correct equation is (D).

Step-by-step explanation:  Given that Rin 1.5 miles to school every morning and then rides home in the afternoon.

So, the total distance covered by Rin while going to  school and coming back is given by  (1.5 + 1.5) miles.

Also, in the evening, Rin rides to the park and back home.

Let, 'x' miles be the total distance covered by her while going to the park and coming back home every evening.

Therefore, the total distance that she rides everyday will be

Since she rides a total of 25 miles over 5 school days, so the equation that can be used to find the distance she rides each evening is given by

Thus, (D) is the correct option.