Ms. Watson's class read for a total

of 450 hours this month. Mr. Gerk's

class read two-thirds the number of

hours read by Ms. Watson's class.

Miss Rupp's class read twice the

number of hours read by Mr. Gerk's

class. If there were a total of

90 students in these three

classrooms, what was the average

number of hours read per student?

Question

Braylen Beltran

Mathematics

5 December, 08:05

Ms. Watson's class read for a total

of 450 hours this month. Mr. Gerk's

class read two-thirds the number of

hours read by Ms. Watson's class.

Miss Rupp's class read twice the

number of hours read by Mr. Gerk's

class. If there were a total of

90 students in these three

classrooms, what was the average

number of hours read per student?

+4

Answers (1)

Know the Answer?

Nigel Maldonado · Answer 1

Since ms. watson's class read for a total of 450 hours, we can calculate the amount of hours the mr gerk's class read by: 450*2/3, which equals 300. Then we know Miss rupp's class read twice the number of hours read by mr. gerk's class so that's 600 hours.

finally in order to calculate the average number of hours: (450+300+600) / 90=15