Question

The number of minutes need to complete a set of tasks varies directly with the number of tasks and inversely with the number of people working on the task. if it takes 91 people 2 minutes to complete 13s task, how long, in minutes, will it take two people to complete 4 tasks

Answer 1

28 minutes

Explanation:

y =kz/x where k is the constant of variation

y = number of minutes and x is people involved and z is the number of tasks

2 = k * 13/91

2 = k * 1/7

Multiply each side by 7

2*7 = k * 1/7 *7

14 =k

y =14 z/x

y = 14 * 4/2

y = 28