Two class train

The ratio of first and second class train fares between two stations is 3:1 and that of the number of passengers travelling between these stations by first and second class is 1:50. If on a particular day USD 1325 be collected, then the amount collected from second class passengers is how many dollars?

Correct answer:

B =  1250 USD

Step-by-step explanation:

a:b=3:1 n1:n2=1:50  m=1325 USD  m = n1 a+n2 b  a=3b n2 = 50 n1  m = n2/50 3b + n2 b  B = n2 b  m=3/50 B+B 1325=3/50 B+B  53B=66250  B=5366250=1250  B=1250=1250 USD



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