Let us jump straight to the problems to understand the solution methodology. Let us draw a Venn Diagram with the information as provided above. therefore numbers divisible by 2, 3 and 5 = 27 + 13 + 3 ...

In his book The Mathematical Universe, mathematician William Dunham wrote of John Venn’s namesake legacy, the Venn diagram, “No one in the long history of mathematics ever became better known for less ...