Question

In a bag containing black and white marbles, of the marbles are black.

Which could be the numbers of black and white marbles in the bag?









A.
3 black and 8 white







B.
12 black and 20 white







C.
20 black and 12 white







D.
8 black and 3 white

Answer 1

@k_lynn

Answer 2

sorry 3/8 of the marbles are black

Answer 3

help plz

Answer 4

Tthe ratio of black to white marbles is 3 to 5.

So now you have to see if any of the answer choices have the same ratio

Answer 5

well there is 3/8 but not 3/5 @Directrix

Answer 6

ooh is it b

Answer 7

3/8 are black so in a group of 8 marbles, 3 would be black and 5 would be white.

So, the ratio of black to white is 3 to 5 or 3/5.

Answer 8

so its a

Answer 9

For example, C is
20 to 12
if we simplify that we get
5 to 3
so that is wrong

Answer 10

ok so if we do 12 20 it would be right

Answer 11

You said B)
B. 12 black and 20 white

12/20 = 3/5 which is correct, I think.

Answer 12

60%

Answer 13

this was my last q on my test and I got this score

Answer 14

A_ 3 black and 8 white

Not correct because B to W is 3 to 8 which is wrong.

Answer 15

thx