Question

5
Tina works 15 hours a week (Monday to Friday). Last week she worked 3 1/2 hours on
Monday, 4 hours on Tuesday, 21/6 hours on Wednesday and 1 1/2 on Thursday. How
many hours did she work on Friday?

Answer 1

The number of  hours did Tina work on Friday is "3.833 hours".

Step-by-step explanation:

Given,

Tina works 15 hours a week (Monday to Friday).

Last week she worked on,

Monday = 3$\frac{1}{2}$ hours = 3.5 hours

Tuesday = 4 hours,

Wednesday = 2$\frac{1}{6}$ hours = 2.167 hours,

Thursday = 1$\frac{1}{2}$ hours = 1.5 hours.

∴ Number of  hours did she work on Friday

= Tina works 15 hours a week (Monday to Friday) - Tinna last week she worked(Monday to Friday)

= 15 hours - (  3.5 + 4 + 2.167 + 1.5) hours

= 15 hours - 11.167 hours

= 3.833 hours

Hence,  the number of  hours did she work on Friday is 3.833 hours.