TWO numbers is 432.Concept:If LCM and HCF of the two numbers be x and y respectively, then x is completely divisibly by y.Calculation:LCM of the two number = 432Option 1: 432 ÷ 12 = 36 (completely divisible, possible)OPTION 2: 432 ÷ 34 = 12.7 (not completely divisible, not possible)Option 3: 432 ÷ 26 = 16.6 (not completely divisible, not possible)Option 4: 432 ÷ 32 = 13.5 (not completely divisible, not possible)∴ Option 1 is correct.