Use Euclid's division algorithm to find $\text{HCF}$ of $1260 \text{and} 7344$

An army contingent of $616$ members is to march behind an army band of $32$ members in a parade. The two groups are to march in the same number of columns. What is the maximum number of columns in which they can march?

A merchant has $120$ litres of oil of one kind, $180$ litres of oil of another kind and $240$ litres of oil of third kind. He wants to sell the oil by billing the three kinds of oil in tins of equal capacity. What should the greatest capacity of such a tin?