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25 Sep 2019, 00:50
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C
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Joe has a collection of 280 sports cards. If 30% of them are baseball cards, 25% of them are football cards, and the rest are basketball cards, how many basketball cards does Joe have?
A. 70
B. 84
C. 126
D. 154
E. 196
A. 70
B. 84
C. 126
D. 154
E. 196
25 Sep 2019, 03:54
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Bunuel
Joe has a collection of 280 sports cards. If 30% of them are baseball cards, 25% of them are football cards, and the rest are basketball cards, how many basketball cards does Joe have?
A. 70
B. 84
C. 126
D. 154
E. 196
A. 70
B. 84
C. 126
D. 154
E. 196
base ball = 84
foot ball = 70
total 154
basket ball ; 280-154 ; 126
IMO C
27 Sep 2019, 10:07
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Bunuel
Joe has a collection of 280 sports cards. If 30% of them are baseball cards, 25% of them are football cards, and the rest are basketball cards, how many basketball cards does Joe have?
A. 70
B. 84
C. 126
D. 154
E. 196
A. 70
B. 84
C. 126
D. 154
E. 196
We see that the percent that are basketball cards is 100 - 30 - 25 = 45%.
So, the number of basketball cards is 0.45 x 280 = 126.
Answer: C
