Question

There were 30 marbles in the back of these 20 or blue and the rest are yellow forget marbles of each color were chosen from the back of the 20 blue marbles four out of five or chosen

Answer 1

Solution:

There were 30 marbles in the back of these 20 or blue and the rest are yellow

20 blue marbles

10 yellow marbles

a) For a game, each marble was chosen and 4/5 of the 20 blue marbles was chosen, i.e.

$=\frac{4}{5}\times20=16$

16 blue marbles was chosen

That means,

$1-\frac{4}{5}=\frac{1}{5}$

1/5 yellow marbles was chosen,

$\frac{1}{5}\times10=2$

The number of bag's marble chosen is

$16+2=18$

Hence, the number of bag's marble chosen is 18

b) For the number of blue marbles not chosen

$=20-16=4$

Hence, the number of blue marbles not chosen is 4

c) The number of yellow marbles chosen is 2