For any numbers a and b, a#b = ab(6 − b). If a and a#b both represent positive numbers, which of the following could be a value of b?
Choose the correct choice from the following options:	A) 5	B) 5,4	C) 5,4,3	D) 5,4,3,2,1	E) 5,4,3,2
a#b positive then b may be positive or negative. if positive then b&lt; 6 may be 5,4,3,2 or 1 and if negative then it is more than or equal to - 1 negative . ab will be -ve which is not possible as a and a#b should be positive.   ans 5,4,3,2 and 1   5,4,3,2,1
<result>D</result>
For any numbers a and b, a#b = ab(6 − b). If a and a#b both represent positive numbers, which of the following could be a value of b?