Answer:
# winners = 40
Explanation:
If there is a 1 in 20 chance of winning, this means that there will be 1 winner for every 20 entrants. The first step is to find out how many groups of 20 are included in 800 entrants. Hence:
# groups = 800 ÷ 20
# groups = 40
If there is 1 winner per group, then this means there will be a total of 40 winners within this draw.
Hope that helps!
each participant has a 1/20 chance of winning.
so, 800 times that gives us
800 × 1/20 = 800/20 = 40
so, we expect 40 winners per draw.
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