At a speed of 50 miles per hour, a certain car uses 1gallon of gasoline every 30 miles. Ifthe car starts with a full 12 gallon tank of gasoline and travels for 5 hoursat 50 miles per hour, the amount of gasoline used would be what fraction of afull tank?
325
1136
712
23
2536
直接25/3约等于8.333算出来的C。。。