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Number Systems
hard
0:00.0
Evaluate
∑
k
=
1
5
⌊
k
/
2
⌋
\sum_{k=1}^{5} \lfloor k/2 \rfloor
∑
k
=
1
5
⌊
k
/2
⌋
.
A
5
5
5
B
6
6
6
C
7
7
7
D
8
8
8
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