yes, it is 18
12 blue marbles
He will have 13 blue marbles and 10 green marbles.
24
pedaphile
20% of 50 marbles is 1 fifth of the marbles in the bag. so 50 marbles divided by 5 =10 blue marbles
10 Green marbles, 13 Blue marbles.
12 blue marbles
12 blue marbles
He will have 13 blue marbles and 10 green marbles.
at least 39 blue marbles
Number of marbles in total = 90 Fraction of marbles are blue = five-ninth Number of blue marbles = five-ninth of ninety = 50 So, the answer is 50 blue marbles.
9:10
24 red marbles
If there are 20 red marbles and 40 blue marbles, the ratio of red to blue is 1 over 2. The number of white marbles does not matter.
24
12
25