A bag contains 20% red balls, 30% green balls and the rest blue balls. If there are 80 blue balls, what is the total number of balls?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e.160.
Red = 20% and Green = 30%
Blue = 100 – 50 = 50%
Blue balls = 80 × (100/50) = 160