SOLUTION: Of the vehicles stopped by police 1/3 were station wagons 1/4 were sport cars and 1/5 were commercial. If 60 cars were booked in total how many cars that belonged to a different ca

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: Of the vehicles stopped by police 1/3 were station wagons 1/4 were sport cars and 1/5 were commercial. If 60 cars were booked in total how many cars that belonged to a different ca      Log On


   



Question 850348: Of the vehicles stopped by police 1/3 were station wagons 1/4 were sport cars and 1/5 were commercial. If 60 cars were booked in total how many cars that belonged to a different category were booked
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +x+ = the fraction that were different
+1%2F3+%2B+1%2F4+%2B+1%2F5+%2B+x+=+1+
Multiply both sides by +60+
+20+%2B+15+%2B+12+%2B+60x+=+60+
+47+%2B+60x+=+60+
+60x+=+13+
+x+=+13%2F60+
+%28+13%2F60%29%2A60+=+13+
13 cars were different