Question

A box contains 12 green balls, 11 red balls, 7 white balls, and 10 black balls.

What is the probability of drawing a black ball from this box?

A. 1/10


B. 1/40


C. 1/4


D. 1/3

Answer 1

@Simple10

Answer 2

A. Confirm it.

Answer 3

No picture for this one.

Answer 4

Can you explain it, please?

Answer 5

It's C. Actually. Typo,

Answer 6

@Simple10 Is he right?

Answer 7

Here is the work for this:

Add all the balls.

12 + 11 + 7 + 10 = 40

So 10/40 is black which is eventually simplified down to 1/4.

Your answer is C!

Answer 8

Thanks! can you help me with one more?

Answer 9

\[\frac{ 10 blackballs }{ 40 total balls }=\frac{ 1 }{ 4}\]

Answer 10

Keep posting them and summoning me :| I love the medals ;)