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Mathematics
Problem
Which term of the arithmetic progression 4, 9, 14, 19, \dots is 99? a)
19
th
19\text{th}
19
th
b)
18
th
18\text{th}
18
th
c)
20
th
20\text{th}
20
th
d)
21
th
21\text{th}
21
th
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