The ratio of two numbers is 4 : 5 and their Least Common Multiple is 180. What is the sum of the two numbers?
Show answer & explanation
Correct answer: C
Explanation
Ratio of two numbers = 4 : 5, LCM = 180
Numbers = 4x and 5x
LCM = 20x
20x = 180
x = 9
Numbers = 36 and 45
Sum = 36 + 45 = 81