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Mathematics
Mathematics
Problem
In an arithmetic progression, the 7th term is
29
29
29
. If the sum of the first 15 terms is
360
360
360
, what is the 15th (last) term? a)
11
11
11
b)
24
24
24
c)
−
11
-11
−
11
d)
−
16
-16
−
16
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