If the mode of the scores 10, 12, 13, 15, 15, 13, 12, 10, x is 15, then what is the value of x?

NDA 2021 Mathematics question

If the mode of the scores 10, 12, 13, 15, 15, 13, 12, 10, is 15, then what is the value of ?

(A)10
(B)12
(C)13
(D)15Correct

Answer: (D)

Solution

Among the eight known scores, each of 10, 12, 13 and 15 occurs exactly twice. The mode is the score with the highest frequency. For 15 to be the mode, it must

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Question ID VK-033610