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#include <stdio.h>

int main()
{
    // make answer variables
    char ans1, ans2, ans3, ans4, ans5;

    // ask 5 math questions and read in a character input
    printf("What is 5+2?\n");
    printf("a. 6\n");
    printf("b. 7\n");
    printf("c. 3\n");
    printf("d. 2\n");
    printf("e. 1\n");
    scanf("%s", &ans1);

    printf("What is 10+3?\n");
    printf("a. 13\n");
    printf("b. 7\n");
    printf("c. 12\n");
    printf("d. 4\n");
    printf("e. 2\n");
    scanf("%s", &ans2);

    printf("What is 9/3?\n");
    printf("a. 0\n");
    printf("b. 1\n");
    printf("c. 4\n");
    printf("d. 3\n");
    printf("e. 9\n");
    scanf("%s", &ans3);

    printf("What is 5-2?\n");
    printf("a. 6\n");
    printf("b. 7\n");
    printf("c. 3\n");
    printf("d. 2\n");
    printf("e. 52\n");
    scanf("%s", &ans4);

    printf("What is 2*4?\n");
    printf("a. 0\n");
    printf("b. 7\n");
    printf("c. 3\n");
    printf("d. 8\n");
    printf("e. 6\n");
    scanf("%s", &ans5);

    // store a counter and count how many are correct
    int cnt = 0;
    if(ans1=='b') cnt++;
    if(ans2=='a') cnt++;
    if(ans3=='d') cnt++;
    if(ans4=='c') cnt++;
    if(ans5=='d') cnt++;

    // output the numbr of correct answers and the percentage of correct answers
    printf("The number of correct answers out of 5 is: %d\n", cnt);
    printf("Your percentage is: %d\n.", cnt*100/5);


    return 0;
}