In a box of marbles 3/8 of the marbles are red,2/5 are blue and the rest are green in the red marbles 2/9 are spotted.find the fraction of marbles that are (a)green and (b) red but not spotted.
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Answer:
Green Marbles = 9/40
Spotted Marbles = 1/12
Step-by-step explanation:
In a box of marbles , 3/8 of the marbles are red 2/5 are blue and the rest are green . Of the red marbles 2/9 are spotted
Let say total marbles are 360 M
Red Marbles = (3/8) 360M = 135 M
Blue Marbles = (2/5) 360M = 144 M
Green Marbles = 360M - 135M - 144M = 81M
Spotted Marbles = (2/9) 135M = 30M
Spotted Marbles ratio = 30M/360M = 1/12
Green Marbles = 81M/360M = 9/40
Hope it helps you...
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