Problema Solution
Ernesto wants to attend more group exercise classes at his gym. This week, he plans to attend 1 cardio class and 4 weightlifting classes, which will last a total of 188 minutes. Next week, he hopes to attend 2 cardio classes and 4 weightlifting classes, which will last a total of 244 minutes. Given that all cardio classes and all weightlifting classes are the same length, how long is each class?
Answer provided by our tutors
Let
x = the length of one cardio class in minutes
y = the length of one weightlifting class in minutes
x + 4y = 188
2x + 4y = 244
........
click here to see the system of equations solved for x and y
........
x = 56 min
y = 33 min
One cardio class lasts 56 minutes, while one weightlifting class lasts 33 minutes.