SOLUTION: there is a group of boys and girl waiting for the school buses .
15 girls get on the first bus.The ratio of boys to girls at the stop is now 7:4.
12 boys get on the next bus.the
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-> SOLUTION: there is a group of boys and girl waiting for the school buses .
15 girls get on the first bus.The ratio of boys to girls at the stop is now 7:4.
12 boys get on the next bus.the
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Question 874525: there is a group of boys and girl waiting for the school buses .
15 girls get on the first bus.The ratio of boys to girls at the stop is now 7:4.
12 boys get on the next bus.the ratio of boys to girls at the stop is now 1:1
How many students where there at the stop to start with. Answer by ewatrrr(24785) (Show Source):
Hi 4b -7g = -105 b - g = -3
4b-7g = -105 b -g = -3 times -7 add to first
-3b = -84
b = 28 and g =31 at the stop to start with
checking
28/(31-15) = 28/16 = 7/4
