Question 138888
Let f=number of 4 passenger cars, f-3=number of 6 passenger cars.
4f+6(f-3)=92
4f+6f-18=92
10f-18+18=92+18
10f=110
f=11 Ans.
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Check:
11*4=44
8*6=48
44+48=92
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Ed