Question 4
In a shopping mall, a ball is drawn from one of the five boxes shown below. A door prize is won if the number of the ball is 1. From which box should a ball be drawn so that the chance of winning a door prize is as large as possible?
IMAS 2014 — Middle Primary Grades 3–4 — Round 2 Question 4
IMAS · IMAS 2014 — Middle Primary Grades 3–4 — Round 2
