Question

You are working as an office apprentice for the bksb Newcastle Arena.

Answer 1

Answer:

There will be 40 winners.

There is a 95% chance of not winning.

Step-by-step explanation:

In order to calculate the winners per draw, we just have to multiply the chance of winning by the entrants.

We have 800 entrants, and there is 1/20 chance of winning, so we just multiply it:

$winners:(Entrants)(Chance of winning)\\Winners:(800)(\frac{1}{20})\\Winners:\frac{800}{20} \\Winners:40$

And now to calculate the percentage we just have to do a rule of thirds:

If 20 is 100% how much would 1 be?

$\frac{1}{20}= \frac{x}{100}$

$x=\frac{100}{20} \\x=5$

So now we now that the percentage of winners would be 5%.

Answer 2

40 is the correct answer