23 × 19 × ? ÷ 19 ÷ 17 = 115  Choose the correct answer:
A) 65	B) 75	C) 85	D) 95	E) 45
Explanation:   23 × 19 × ? ÷ 19 ÷ 17 = 115   =&gt; (23 × 19 × ?)/(19 × 17) = 115   =&gt; ? = (115 × 19 × 17)/(23 × 19) = 85   Answer: Option 85
<result>C</result>
23 × 19 × ? ÷ 19 ÷ 17 = 115