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09 Oct 2019, 00:31
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E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
15%
(low)
Question Stats:
87% (01:21) correct
13%
(01:45)
wrong
based on 45
sessions
History
Date
Time
Result
Not Attempted Yet
At a local gym there were 55 people working out at 4 p.m., of those people 29 did cardio-vascular exercises and 20 did weight training. If 13 did neither cardio-vascular exercises nor weight training, then how many people did both cardio-vascular exercises and weight training?
A. 62
B. 49
C. 13
D. 12
E. 7
A. 62
B. 49
C. 13
D. 12
E. 7
09 Oct 2019, 10:59
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Bunuel
At a local gym there were 55 people working out at 4 p.m., of those people 29 did cardio-vascular exercises and 20 did weight training. If 13 did neither cardio-vascular exercises nor weight training, then how many people did both cardio-vascular exercises and weight training?
A. 62
B. 49
C. 13
D. 12
E. 7
A. 62
B. 49
C. 13
D. 12
E. 7
solve using 2x2 matrix
IMO E ; 7
12 Oct 2019, 17:09
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Bunuel
At a local gym there were 55 people working out at 4 p.m., of those people 29 did cardio-vascular exercises and 20 did weight training. If 13 did neither cardio-vascular exercises nor weight training, then how many people did both cardio-vascular exercises and weight training?
A. 62
B. 49
C. 13
D. 12
E. 7
A. 62
B. 49
C. 13
D. 12
E. 7
We can create the equation:
55 = 29 + 20 - both + 13
55 = 62 - both
both = 7
Answer: E
