Answer :
12 are tankesr
40 cars total
12/40
12/40=6/20=3/10
3/10=tankders
10/10-3/10=7/10
7/10=70/100=70%
70% wern't tankser
40 cars total
12/40
12/40=6/20=3/10
3/10=tankders
10/10-3/10=7/10
7/10=70/100=70%
70% wern't tankser