11. Predict the thinking number

1. Georg thinks of a three digit number. The first digit is an even number. The second digit is a prime number and the third digit is an odd number. How many different numbers could Georg be thinking of?

 

Answer: .

 

2. Gauss thinks of a two digit number. The first digit an even number and the second digit can take an odd number. Find the number of possible different number could Gauss be thinking of?

 

Answer: .