def equivalent_resistance_in_parallel(*resistances):
    """
     Calculate and return the value of equivalent resistance in parallel using given values of the resistances

     How to Use:
         Give a list of resistance which are placed in parallel,

     Parameters:
         resistances (list): resistances in parallel

     Returns:
         int: the value of equivalent resistance in parallel as Ohm
     """

    pr = 0
    for r in resistances:
        pr += 1 / r
    er = 1 / pr
    return er