Question

A cake decorator can decorate 6 cakes in 90 mintues.At this rate,how many cakes could he decorate during his 8-hour workday if he takes two -15 mintue coffee breaks?

Answer 1

30 cakes.

Explanation:

Given:

A cake decorator can decorate 6 cakes in 90 minutes.

Question asked:

At this rate,how many cakes could he decorate during his 8-hour workday if he takes two -15 minutes coffee breaks?

Solution:

Total number of hours, he work = 8 hours

1 hour = 60 minutes

8 hours = 60
`*` 8 = 480 minutes

Coffee break = 2 of 15 minutes, 15 + 15 = 30 minutes

Remaining working hour = 480 - 30 = 450 minutes

In 90 minutes, he decorate number of cakes = 6

In 1 minute, he decorates number of cakes =
`(6)/(90)`

In 450 minutes, he decorates number of cakes =
`(6)/(90)*450=(2700)/(90) =30\ cakes`

Therefore, at this rate, he can decorate 30 cakes.