SOLUTION: There are 36 passengers in a train.The ratio of children to adults in the train is 5 to 4. How many children are in the train?

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: There are 36 passengers in a train.The ratio of children to adults in the train is 5 to 4. How many children are in the train?      Log On


   

Question 1136953: There are 36 passengers in a train.The ratio of children to adults in the train is 5 to 4. How many children are in the train?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +x+ = number of children
+x+%2F+%28+36+-+x+%29+=+5%2F4+
+4x+=+5%2A%28+36+-+x+%29+
+4x+=+180+-+5x+
+9x+=+180+
+x+=+20+
There are 20 children
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check:
+36+-+x+=+16+
+20%2F16+=+5%2F4+
+5%2F4+=+5%2F4+
OK