Question

About 50.4 billion pieces of unopened junk mail ends up in landfills each year. This is about 48​% of all the junk mail that is sent annually. How many pieces of junk mail are sent​ annually?

Answer 1

100.4 billion pieces of junk mail are sent.

Answer 2

24.192 billion pieces !!
you find 48% of 50.4 billion
2 ways to do :
(50.4/100) *48
or
50.4 * (48/100)