West Bengal Board Solutions for Chapter: Hcf and Lcm of Three Numbers, Exercise 2: Let's do ourselves - 12.1

Let's find the greatest number, which will divide both $564$ and $630$ to keep remainder $3$ in both cases.

Let's find the greatest number which divides $78,182$ and $195$ and keeps no remainder.

Mili bought few exercise books for $₹80.50 \mathrm{p}$. Her brother bought few more for $₹57.50$ paise. Let's find the maximum price of an exercise book and total number of exercise books bought.