C Programming to Convert minutes into seconds

/* To convert minutes into seconds */
#include<stdio.h>
#include<stdlib.h>
int main()
{
    float n,b,s;
    int a;
    printf("Enter time in Minutes: ");
    scanf("%f",&n);
    a=n;
    b=n-a;
    s=a*60+b*100;
    printf("The time in seconds:%0.2f",s);
    system("pause");
    return 0;
}