Question

You use 4 boxes of rice to serve 13 people. If you want to serve 39 people, what should you do?

a)3 times as many boxes of rice
b)12 more boxes of rice
c)4 times as many boxes of rice
d)26 more boxes of rice

Answer 1

A: 3 times as many
Since 13 multiplied by 3 is 39, multiply 4 and 3 to get 12

Answer 2

Option A
`3` times as many boxes of rice

Explanation:

we know that

Using proportion

`(4)/(13)(boxes)/(people)=(x)/(39)(boxes)/(people) \\ \\x=39*4/13\\ \\x=12\ boxes`

original quantity of boxes ----->
`4`

boxes needed ----->
`12`

`12=3*(4)`

therefore

Use
`3` times as many boxes of rice