If 20% of A = 50% of B, then what per cent of A is B ?A40B30C20D10Answer: A. 40 Read Explanation: 20% of A = 50% of B (20/100) × A = (50/100) × B 2A = 5B A = 5B/2 B/(5B/2) × 100 = 40%Read more in App