Statements: No glass is plastic. All plastic is synthetic. Conclusions: I. No glass is synthetic. II. All synthetics are plastic. Decide which of the given conclusions logically follows from the statements.

Statements: Some pens are pencils. No pencil is eraser. All erasers are pink. Conclusions: I. Some pens are pink. II. Some pink things are not pencils.

Read the statements and conclusions carefully. Assuming the information is true, decide which conclusion(s) logically follow(s). Statements: A. All rats are bats. B. All bats are sharks. C. All sharks are walruses. Conclusions: 1. Some sharks are bats. 2. All bats are rats. 3. All walruses are sharks.