Help me in solving LBJ21 problem

My issue

My code

// Update the code below to solve this problem
import java.util.Scanner;
class Codechef
{
	public static void main (String[] args)
	{
		 Scanner scanner = new Scanner(System.in);
        int T = scanner.nextInt(); // number of test cases

        while (T-- > 0) {
            int P = scanner.nextInt(); // score of the participant
            int numProblemsSolved = findNumProblemsSolved(P);
            System.out.println(numProblemsSolved);
        }
    }

    public static int findNumProblemsSolved(int P) {
        if (P % 100 >10 || P > 1000 && P>10) {
            return -1; // invalid score
        }
        return (P % 100) + (P/100);
	}
}

Learning course: Solve Programming problems using Java
Problem Link: CodeChef: Practical coding for everyone