Find the mode of 1,2,3,5,4,8,7,5,1,2,5,9,15 ?A1B5C3D15Answer: B. 5 Read Explanation: Mode = “The number which appears most of the times in a series“. Series = 1,2,3,5,4,8,7,5,1,2,5,9,15 Mode = 5 (frequency of 5 is 3times). Hence the answer is 5.Read more in App