Question

One house key weighs 1/2

ounce.
Which model represents the total weight in ounces of 5 house keys?

Answer 1

Answer: 5/2

Explanation:

If 1 house key weighs 1/2 ounce,

Then do 5×1/2 which is 5/2

or
`(1key)/(5key) (1/2ounce)/(?)`

With this cross multiply and get 1x=5/2

giving a total of 5/2 again when divided by 1.