There are $$60$$ seconds in each minute, so the quotient of the two quantities is $$60$$. 
$$\left( {} \right.$$The number of seconds in a week$$\left. {} \right)$$$$\div$$$$\left( {} \right.$$the number of minutes in a week$$\left. {} \right)=$$． 
(1) $$60$$ 
(2) $$420$$ 
(3) $$3600$$ 
(4) $$7200$$ 