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Mathematics
Mathematics
Problem
In an arithmetic progression, the first term is
5
5
5
and the
10
th
10^{\text{th}}
1
0
th
(last) term is
55
55
55
. What is the sum of these
10
10
10
terms? a)
275
275
275
b)
600
600
600
c)
300
300
300
d)
270
270
270
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