Answer:
50 weeks
Explanation:
Given that :
ROY:
Initial weight = 150 pounds
Weight loss per week = 1.5 pounds
LUIS:
Initial weight = 200 pounds
Weight loss per week = 2.5 pounds
Let x = Number of weeks
Number of weeks when both Luis and Roy will weigh the same:
150 - 1.5x = 200 - 2.5x
-1.5x + 2.5x = 200 - 150
x = 50
Hence, Roy and Luis will weigh the same after 50 weeks
