If +
= 150,
+
+
= 230 and
+
+
= 220, then the value of 5
+
= ____?__.
(A) 170
(B) 320
(C) 490
(D) 470
If +
= 150,
+
+
= 230 and
+
+
= 220, then the value of 5
+
= ____?__.
(A) 170
(B) 320
(C) 490
(D) 470