six
Richard Nixon was elected to two terms during this time period but did not complete his second term. No other president was elected twice during these years.
six
The spelling is president. And which country are you talking about? There are very many countries with presidents.
There are 50 years between 1961 and 2011. You can work this out by subtracting 1961 from 2011.
7
There are 31 years between 1981 and 2012.
18
35
How MANY presidents were there from George to George? There were forty one presidents in between George Washington and George Bush.
31
48 years.
three
34 (79%)