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Mathematics
Mathematics
Problem
Three arithmetic means are inserted between
7
7
7
and
25
25
25
. Which one of the following is equal to the average of
7
7
7
and
25
25
25
? a)
20.5
20.5
20.5
b)
16
16
16
c)
11.5
11.5
11.5
d)
13
13
13
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