Question

Maria decides to increase her homework time of 8 hours per week by 15% Calculate her new homework time. Give your answer in hours and minutes

Answer 1

Maria's homework time is now 9 hours 12 minutes.

Explanation:

Since Maria decides to increase her homework time by 15%.

Then,

15% of 8 hours =
`(15)/(100)` x 8 hours

= 0.15 x 8 hours

= 1.2 hours

(Note that: 1.2 hours = 1 hour 12 minutes)

15% of 8 hours = 1 hour 12 minutes

her new homework time = 8 hours + 1 hour 12 minutes

= 9 hours 12 minutes

Maria's homework time is now 9 hours 12 minutes.