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Mathematics
Problem
Series A is
8
+
2
+
0.5
+
0.125
+
…
8+2+0.5+0.125+\dots
8
+
2
+
0.5
+
0.125
+
…
and Series B is
6
+
3
+
1.5
+
0.75
+
…
6+3+1.5+0.75+\dots
6
+
3
+
1.5
+
0.75
+
…
. Find the ratio of their sums
S
A
:
S
B
S_A : S_B
S
A
:
S
B
. a)
9
:
8
9:8
9
:
8
b)
17
:
18
17:18
17
:
18
c)
8
:
9
8:9
8
:
9
d)
8
:
5
8:5
8
:
5
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