The Highest Common Factor of two numbers is 7 and their Least Common Multiple is 252. The ratio of the numbers is 9 : 4. What is the sum of the two numbers?
Show answer & explanation
Correct answer: C
Explanation
The ratio is 9:4, and the Highest Common factor (HCF) is 7.
Therefore, the numbers are: 9 × 7 = 63
= 4 × 7 = 28
Least Common Multiple (LCM) = (63 × 28) / 7 = 252
Sum of the two numbers = 63 + 28= 91