Bunuel wrote:
Tough and Tricky questions: Statistics.
Set X consists of all two-digit primes and set Y consists of all positive odd multiples of 5 less than 100. If the two sets are combined into one, what will be the range of the new set?
(A) 84
(B) 89
(C) 90
(D) 92
(E) 95
Set X = {11, 13, 17,............., 83, 89, 97}
Set Y = {5, 15, 25,..............., 75, 85, 95}
Combining two sets, say Set Z
Set Z = {5, 11, 13, 15, 17, 25,..................., 75, 83, 85, 89, 95, 97}
Range = Max Value - Min Value
Range (Z) = 97 - 5 = 92
OA D is the answer.
Solved the answer correct here and clicked the answer wrong.