Question 22
i The map below shows 28 postal districts of Singapore. Each district is to be
painted with one colour. What is the least number of colours needed to paint all
the regions so that any two neighboring districts do not share the same colour?
+ ; i)
: 7
eta
Re
BS
painted with one colour. What is the least number of colours needed to paint all
the regions so that any two neighboring districts do not share the same colour?
+ ; i)
: 7
eta
Re
BS