Question

A secretary and a trainee are processing a pile of 124 forms. The secretary processes 15 forms per hour while the trainee processes 7 forms per hour. If the trainee begins working at 9:00a.m. and the secretary starts working after 2 hours, at what time will they finish the pile of forms. Whoever answers correctly and first, he/she will be marked as the brainliest. Pls answer correctly and fast.​

Answer 1

Answer:

Step-by-step explanation:

Let the time required to process the forms by the trainee be x hours.

Then, the time required to process the forms by the secratery be 2 hours less than the trainee which is x - 2

Trainee processes 7 forms in 1 hour

Then trainee processes 7x forms in x hours

Now the secretary processes 15 forms in 1 hour

He processes 15(x - 2) forms in x - 2 hours

Total number of forms to be processed is 124

Now write the equation,

7x + 15(x - 2) = 124

7x + 15x - 30 = 124

22x = 124 + 30

22x = 154

22x / 22 = 154 / 22

So x = 7

Hence the number of hours to finish the pile of forms is 7 hours.

So,

9:00am plus 7 hours is equal to 4:00 pm

Thanks!