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Find the LCM of the mode, median and mean of the data: 7, 2, 10, 4, 3, 12, 8, 4, 6, 4.
A30
B12
C20
D60
Answer & Solution
Correct answer: D. 60
1. Mean = (7+2+10+4+3+12+8+4+6+4)/10 = 60/10 = 6.
2. Sorted: 2,3,4,4,4,6,7,8,10,12; median = (4+6)/2 = 5; mode = 4 (most frequent).
3. LCM of 4, 5, 6 = 60.
_Source: RRB Group D CEN-02/2018 PYQ, Q.13._
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