Question

Sara can type 90 words in 4 minutes. About how many words would you expect her to type in 10 minutes at this rate?

Answer 1

225 words

Explanation:

How many groups of 4 are in 10? 2.5 (4*2.5=10)

So, with this information, you know that you have to multiply 90 2.5 times. This equals 225.

Answer 2

She can type 225 words in 10 minutes

Explanation:

We can find the rate by dividing the number of words by the time

90 words/ 4 minutes

22.5 words per minute

Now to find the number of words in 10 minutes, multiply the rate times the time

22.5 * 10 = 225

She can type 225 words in 10 minutes