Question : The ratio of the two numbers is 4 : 5, and their HCF is 3. What is their LCM?
Option 1: 48
Option 2: 80
Option 3: 60
Option 4: 36
Correct Answer: 60
Solution : The ratio of the two numbers is 4 : 5. Let the numbers be 4$x$, 5$x$. Their HCF = $x$ as 4, 5 are coprime. So, $x$ = 3 Numbers are 4 × 3 = 12, 5 × 3 = 15 We know the product of two numbers = LCM × HCF ⇒ 12 × 15 = LCM × 3 $\therefore$ LCM = 60 Hence, the correct answer is 60.
Result | Eligibility | Application | Selection Process | Cutoff | Admit Card | Preparation Tips
Question : The ratio of two numbers is 3 : 4 and their HCF is 5. Their LCM is:
Question : The product of two numbers is 216. If the HCF is 6, then their LCM is:
Question : The LCM of two numbers is five times their HCF. If the product of the two numbers is 20480, then find their HCF and LCM, respectively.
Question : The ratio of the two numbers is 5 : 7 and their HCF is 3. Their LCM is:
Question : Two numbers are in the ratio 3 : 4. The product of their HCF and LCM is 2700. The sum of the numbers is:
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile