Question

Maricko and her family went on a 10-day vaction. She read 12 pages in her book each day. How many total pages did she read while on vaction?

Answer 1

Maricko reads 12 pages per day. So, if we cumulate the pages read with each day, the cumulative tally would look like this:

`1 \text{ day} \implies 12 \text{ pages} = 1\cdot 12\text{ pages}`

`2 \text{ days} \implies 12+12 \text{ pages} = 2\cdot 12\text{ pages}`

`3 \text{ days} \implies 12+12+12 \text{ pages} = 3\cdot 12\text{ pages}`

So, in general, after
`d` days, Maricko will have read
`d \cdot 12` pages.

Since in your case
`d=10`, Maricko read

`10\cdot 12 = 120` pages while on vacation.