3. Two marks exercise problems I

1. Find all the positive integers which, when divided by \(3\) leave a remainder \(2\).

 

 

 

2. A man has \(532\) flower pots. He wants to arrange them in rows such that each row contains \(21\) flower pots. Find the number of completed rows and how many flower pots are left over.

 

Number of completed rows \(=\)

 

Number of flower pots left over \(=\)

 

 

3. When a positive integer is divided by \(3\), what are the possible remainders?