Question

A computer operator work a total of 37 1/2 hours in one week period. if she worked 5 3/7 hours on Monday, 7 2/3 hours on Tuesday , 6 7/8 hours on Wednesday and 8 1/3 hours on Thursday ,how many hours did she work on Friday ?​

Answer 1

Answer:

115/8 hours

Step-by-step explanation:

A/Q

computer operator works in one weak period =37 1/2 hours

=75/2 hours

Given time taken on following days are-

Mon-3/7 hours

Tues-7 2/3 hours= 23/3 hours

wed-6 7/2=55/8 hours

Thu-8 1/3=25/3 hours

Now,we have to take L.C.M of 7,3,8and3=168

so,Total hours=3/7+23/3+55/8+25/3

=72/168+1288/168+1155/168+1400/168=3915/168=1305/56 hours

Hence,total hours ho works on Friday=75/2-1305/56

=2100/56-1305/56

=795/56

=115/8 hours

Thus,he works on Friday=115/8 hours