SOLUTION: When the smaller of two consecutive integers is added to three times the larger the result is 147. Find the smaller integer.

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Question 270333: When the smaller of two consecutive integers is added to three times the larger the result is 147. Find the smaller integer.
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!

Question 270334 in Travel_Word_Problems:
A freight train travels 90 miles in the same time that a passenger train travels 150 miles. If the passenger train goes 30 miles per hour faster than the freight train, what is the rate of each of them?


D=RT
T=D/R
T=90/R FOR THE FREIGHT TRAIN.
T=150/(R+30) FOR THE PASSENGER TRAIN.
90/R=150/(R+30)
150R=90(R+30)
150R=90R+2700
150R-90R=2700
60R=2700
R=2700/60
R=45 MPH. FOR THE FREIGHT TRAIN.
PROOF:
90/45=150/(45+30)
2=150/75
2=2