Question 86
We have $10$ balls in a bowl, some of them are blue, some of them are yellow and the others are green. They can be put in a line in $360$ different ways. At most how many blue balls are there in the bowl?
(A) $4$
(B) $5$
(C) $6$
(D) $7$
(E) $8$
(A) $4$
(B) $5$
(C) $6$
(D) $7$
(E) $8$