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Mathematics 8 Online
OpenStudy (starstudentgroup765):

2. Helpers are needed to prepare for the fete. Each helper can make either 2 large cakes per hour, or 35 small cakes per hour. The kitchen is available for 3 hours and 20 large cakes and 700 small cakes are needed. How many helpers are required? A. 10 B. 15 C. 20 D. 25 E. 30

OpenStudy (jerry45):

How many questions are there?

OpenStudy (starstudentgroup765):

10

OpenStudy (jerry45):

ok so what is your guess?

OpenStudy (starstudentgroup765):

A

OpenStudy (jerry45):

Correct: 20 large cakes will require the equivalent of 10 helpers working for one hour. 700 small cakes will require the equivalent of 20 helpers working for one hour. This means if only one hour were available we would need 30 helpers. But since three hours are available we can use 10 helpers.

OpenStudy (starstudentgroup765):

ok thx i gave u medal

OpenStudy (jerry45):

No problem! :)

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