What will come in place of the question mark (?) : 300 + (10)2 x 2 = ?

What will come in place of the question mark (?) : 300 + (10)2 x 2 = ?

What will come in place of the question mark (?) : 300 + (10)2 x 2 = ?
 (a) 450
 (b) 800
 (c) 500
 (d) 550
 (e) None of these



Ans: ( c )  500