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29 Oct 2019, 00:54
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B
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Difficulty:
35%
(medium)
Question Stats:
66% (01:32) correct
34%
(01:40)
wrong
based on 79
sessions
History
Date
Time
Result
Not Attempted Yet
On Monday, Janice started training for a marathon and ran one mile that day. On Tuesday, Janice ran one mile more than she did on Monday. She continues this training process for 12 days. The sum of the total number of miles Janice ran has how many distinct prime factors?
A. 2
B. 3
C. 4
D. 5
E. 6
A. 2
B. 3
C. 4
D. 5
E. 6
29 Oct 2019, 01:09
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1,2,...12
(12+1)×6=78
78=2×13×3
Option B
Posted from my mobile device
(12+1)×6=78
78=2×13×3
Option B
Posted from my mobile device
Archit3110
Major Poster
29 Oct 2019, 08:55
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Bunuel
total miles ; 12*13/2 = 78
78 prime factors ; 2*3*13
IMO B
