if price of t.v set is reduced by 10%, then its sale increases by 85%, find net effect on sale value Pick:	A) 44	B) 45	C) 46	D) 67	E) 48

Rationale: - a + b + ( ( - a ) ( b ) / 100 ) = - 10 + 85 + ( - 10 * 85 ) / 100 = - 10 + 85 - 8.5 = 67 answer : d
Answer: D