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Answer:
[tex]60 \%[/tex]
Step-by-step explanation:
Among the 15 cars ,only 9 cars with a fuel efficiency less than 32 mpg :
27,22,18,23 , 30 , 19,16,28,21
[tex]\text{the percentage} =\frac{9}{15} \times 100=60 \%[/tex]