30% of 150 = 15% of ? + 20% of 180A8-B60C20D40Answer: B. 60 Read Explanation: 30% of 150 = 15% of ? + 20% of 180 0.15 × ? + 0.20 × 180 = 0.30 × 150 0.15 × ? + 36 = 45 0.15 × ? = 9 ? = 9/0.15 ? = 60Read more in App