Kindly answer the following question:

Question

8- Rich and Mellow were roommates in the freshman dorm. Rich lost is room key so they were sharing Mellow’s key until they got another made. Once morning, Rich went to an early class without the key. Mellow went to a later class and needed to give Rich the key. At 8:50 exacly, Rich left class and walked toward the dorm. Also at 8:50, Mellow left the dorm and walked towards Rich’s class along the same route that Rich would take. Mellow walks 6 yards per minute slower than Rich. They passed each other at 8:54 exactly, and Mellow toosed Rich the key. It is 1,020 yards from Rich’s class to the dorm. How fast did each of them walk?

Answer 1

Both walk for 4 minutes.

r represents Rich's speed

4r + 4(r - 6) = 1020

Can you solve for r and answer?