SOLUTION: A box contains some red ,yellow and blue counters. The ratio of the number of red counters to that of yellow counters is 2:3. The ratio of the number of blue counters to that of re
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Question 1079756: A box contains some red ,yellow and blue counters. The ratio of the number of red counters to that of yellow counters is 2:3. The ratio of the number of blue counters to that of red counters is 4:7. What fraction of the counters are yellow Found 2 solutions by josgarithmetic, ikleyn:Answer by josgarithmetic(39617) (Show Source):
You can put this solution on YOUR website! A box contains some red ,yellow and blue counters. The ratio of the number of red counters to that of yellow counters is 2:3. The ratio of the number of blue counters to that of red counters is 4:7. What fraction of the counters are yellow
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Fraction of counters YELLOW, .
red yellow blue
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2 3
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7 4
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Find the slot for yellow in the second row using .
red yellow blue
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2 3
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7 4
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RED YELLOW BLUE
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14 21 8 total 43 parts
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You are given
= and = , and they want you calculate .
From the condition,
= and = .
It implies
= = = = .
Then = = = = .
Thus we have {{r/(y+b+r)}}} = ,
and the last step is
= = = .
(