Every 10 years the alumni have a reunion. Every 2 years the alumni have a soccer game. How often do the reunion and the game fall in the same year?

Assuming that they start the 10 and 2 years on the same year

one way is to find the least common multipule by listing factors and including all of them

10=2 times 5

2=2

we need to have at leas 1 2 and 1 5

the answer is 10

every 10 years is the answer

another way is to list them

exg they started at 2000

socker reunion

2002 2000

2004

2006

2008

2010 2010

the answe ris every 10 years