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Problems
Contests
National and Regional Contests
USA Contests
USA - Middle School Tournaments
Math Invitational for Girls
2018 MIG
1
1
Part of
2018 MIG
Problems
(2)
2018 Individual #1
Source:
5/5/2022
Evaluate
1
+
2
+
4
+
7
1 + 2 + 4 + 7
1
+
2
+
4
+
7
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(
A
)
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14
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(
B
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15
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(
C
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16
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(
D
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17
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(
E
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18
<span class='latex-bold'>(A) </span>14\qquad<span class='latex-bold'>(B) </span>15\qquad<span class='latex-bold'>(C) </span>16\qquad<span class='latex-bold'>(D) </span>17\qquad<span class='latex-bold'>(E) </span>18
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(
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14
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(
B
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15
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(
C
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16
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(
D
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17
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(
E
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18
2018 Individual
2018 Team #1
Source:
1/13/2023
For how many numbers
n
n
n
ranging from
1
1
1
to
10
10
10
, inclusive, is
5
n
+
1
5n + 1
5
n
+
1
a prime number?
2018 Team