A set of numbers has an average of 20. If the largest element is 4 greater than 3 times the smallest element, which of the following values cannot be in the set? Choose one.
A) 55	B) 90	C) 23	D) 50	E) 55
Ans: B   Solution: we are given the relation between smallest and the largest term. so let the smallest a and largest be 3a+4   so the avg = 50   which tells us that any value of a must be less than 20   so a&lt;50 means, largest value 3a+4 &lt;(3*20)+4   =largest value must be &lt;64   so 64 can not be the value in the set.
<result>B</result>
A set of numbers has an average of 20. If the largest element is 4 greater than 3 times the smallest element, which of the following values cannot be in the set?