A set of numbers has an average of 50. If the largest element is 3 greater than 3 times the smallest element, which of the following values cannot be in the set?
Pick one
A) 85  B) 90  C) 123  D) 150  E) 155
Ans: E   Solution: we are given the relation between smallest and the largest term. so let the smallest a and largest be 3a+3   so the avg = 50   which tells us that any value of a must be less than 50   so a&lt;50 means, largest value 3a+3 &lt;(3*50)+3   =largest value must be &lt;153   so 155 can not be the value in the set.
<result>E</result>
A set of numbers has an average of 50. If the largest element is 3 greater than 3 times the smallest element, which of the following values cannot be in the set?