JAVA

public static int workbook(int n, int k, List arr)

{
int page = 1;
int count = 0;
for(int i=0;i<n;i++){
    int noq = arr.get(i);
    int j =1;
    while(j<=noq){
        int ques = j;
        int qcount = 1;
        while(qcount<=k){
            if(ques==page){
                count++;
            }
            ques++;
            if(ques>noq){
                break;
            }   
            qcount++;             
        }
        page++;
        j+=k;
    }
    }
    return count;
}