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19 Jan 2021, 02:00
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B
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:
82% (01:13) correct
18%
(01:09)
wrong
based on 112
sessions
History
Date
Time
Result
Not Attempted Yet
There are 50 children in \(2^{nd}\) grade at Venn Middle School. 40% of those kids play only soccer and 30% play only baseball. If 20% play neither, how many play both?
A. 0
B. 5
C. 10
D. 15
E. 20
A. 0
B. 5
C. 10
D. 15
E. 20
rocky620
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19 Jan 2021, 05:13
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Sets Approach
Only soccer (OS) = 40% = 20
Only baseball (OB) = 30% = 15
Neither (N) = 20% = 10
Total = OS + OB + Both + N
50 = 20+15+Both+10
Both=5
Alternate Approach
40%+30%+20% = 90%
So 10% play both = 5
Option B
Only soccer (OS) = 40% = 20
Only baseball (OB) = 30% = 15
Neither (N) = 20% = 10
Total = OS + OB + Both + N
50 = 20+15+Both+10
Both=5
Alternate Approach
40%+30%+20% = 90%
So 10% play both = 5
Option B
20 Jan 2021, 20:03
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Would someone be able to tell me how to input tables not the forum besides attaching documents? Kindly.
There are 4 possible sets that sum to 50.
Baseball + Soccer: 5
Baseball only: 3/5 x 50 = 15
Soccer only: 2/5 x 50 = 20
Neither soccer or baseball: 1/5 x 50 = 10
Answer is B.
There are 4 possible sets that sum to 50.
Baseball + Soccer: 5
Baseball only: 3/5 x 50 = 15
Soccer only: 2/5 x 50 = 20
Neither soccer or baseball: 1/5 x 50 = 10
Answer is B.
