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A history professor will ask 7 short answer questions on his final exam: 2 on the...

A history professor will ask 7 short answer questions on his final exam: 2 on the Civil War, 3 on World War I, and 2 on World War II. In how many ways can the questions be arranged?

Refer to the previous question. In how many ways can the questions be arranged if all those on the Civil War must come first and all those on WWII must come last?

Math   Statistics-And-Probability   
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