The HCF of two numbers is 11 and their LCM is 693. If one number is 77, what is the other?

Explanation

1. 01

   Other number = $\frac{\text{HCF} \times \text{LCM}}{\text{given number}} = \frac{11 \times 693}{77}$.

2. 02

   = $\frac{7623}{77} = 99$.