Question 5 [6 marks] Consider the following method of a class Mystery public int mystery(double[] numbers, double avalue) \{ int c=0; for (int i=0;1= avalue) \{ c++; f return c; The following variables have been declared: Mysterym=newMysterydouble[]age={15,20,50,30}; (a) What is the output of the following statement? System. out.println(m.mystery (age, 20)); (b) What is the function of the method mystery()? [2] (c) If the array studentAge, whose elements are of type double, contains the ages of HKMU students. Write a statement to output the percentage of students whose ages are between 20 to just below 30 using the method mystery()