Question

if mark got 6 questions out of 40 incorrect, what percent of the questions did he get correct?

Answer 1

Answer:

15%

Step-by-step explanation:

You need to use Rule of three that allows you to solve problems based on proportions.

Questions   Percent

40 -------------100

6----------------- x

40x=6*100

40x=600

x= 600/40

x= 15%