9. The following statements are known: • It's not raining today or the roads are jammed • If Rizky is late for class today, then he is not allowed to take the secon quiz in mathematics. • Rizky will not be late for class only if the roads are not congested Rizky got a score of 90 on the second quiz for mathematics. So it can

Advanced Engineering Mathematics
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9. The following statements are known:
• It's not raining today or the roads are jammed
• If Rizky is late for class today, then he is not allowed to take the second
quiz in mathematics.
• Rizky will not be late for class only if the roads are not congested
• Rizky got a score of 90 on the second quiz for mathematics. So it can
be concluded that...
A. Traffic jam today
B. It's raining today
C. It's not raining today
D. Rizky is late for class today
E. Can't conclude anything
Transcribed Image Text:9. The following statements are known: • It's not raining today or the roads are jammed • If Rizky is late for class today, then he is not allowed to take the second quiz in mathematics. • Rizky will not be late for class only if the roads are not congested • Rizky got a score of 90 on the second quiz for mathematics. So it can be concluded that... A. Traffic jam today B. It's raining today C. It's not raining today D. Rizky is late for class today E. Can't conclude anything
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