Question

There are 30 students in Mrs. Woodward’s class, and 1/5 of the class has their own cell phone. Of this group of students, 1/2 of them are allowed to use social media. How many of the students have a cell phone and can use social media?

Answer 1

3 students

Explanation:

There are 30 students in Mrs. Woodward’s class.

`(1)/(5)` of the class has their own cell phone, so

`(1)/(5)\cdot 30=(1)/(5)\cdot (30)/(1)=6`

students have their own cell phones.

`(1)/(2)` of those 6 students are allowed to use social media. So,

`(1)/(2)\cdot 6=(1)/(2)\cdot (6)/(1)=3`

students are allowed to use social media.