Help me in solving PPSC41B problem

My issue

what is the answer of this program

My code

// Debug the code
#include <stdio.h>

int main(){
    int f = 49;
    float c = (f - 32) * 5 / 9;
    printf("%f", c);

    return 0;
}

Learning course: Programming and Problem solving using C
Problem Link: https://www.codechef.com/learn/course/ciet-programming-c/CIETPC09/problems/PPSC41B