Math
posted by Sarah .
Aidan is 5 feet 6 inches tall,and Belinda is 5 feet 5 inches tall. Aidan lies down on the sideline of a football field with his heels touching the goal line.Then Belinda lies down on the sideline with her heels touching the top of Aidan's head.They continue to take turns doing this until they reach the 50yard line,50 yards away. How many times would they need to lie down in this way to reach or pass the 50yard line?
A)5
B)7
C)14
D)12
Please help ASAP!!!!!

Convert to yards.
5'6" = 66" = 1.83 yards
65" = 1.81 yards
1.81 + 1.83 = 3.64 yards
50/3.64 = ?