the probability are 0.40, 0.50 and 0.10 that, in city driving, a certain kind of compact car will average less than 22 miles per gallon,from 22 to 26 miles per gallon, or more than 26 miles per gallon. Find the probability that among 10 such cars tested, three will average less than 22 miles per gallon, six will average from 22 to 26 miles per gallon, and one will average more than 26 miles per gallon.