Question

What 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

missing something?

Answer 2

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 3

3/8

Answer 4

the ratio of black marbles to the total must be
\(3:8\) or \(\frac{3}{8}\)

Answer 5

Oh

Answer 6

not A because \[\frac{3}{3+8}=\frac{3}{11}\neq \frac{3}{8}\]

Answer 7

maybe B
try
\[\frac{12}{12+20}\]

Answer 8

Ok

Answer 9

But b is 0.375

Answer 10

@satellite73