Question

One-fifth of the members of a senior citizen's club signed up for a computer workshop. What percent of the club did not sign up for the workshop?

Answer 1

`80%` of the club did not sign up for the workshop.

Explanation:

One-fifth of the members of a senior citizen's club signing up for a computer workshop means

`1/5` or `1/5xx100=20%`

Hence, percentage of the club not signing up for the workshop is `100%-20%=80%`.