How long did a king usually rule for?

in egypt  it is like 4 years

Explanation:

1.Queen Elizabeth IIAscended: February 6, 1952 -

Today: 11 May 202024,93268 years 3 months 3 days

2.Queen VictoriaAscended: June 20, 1837 -

Died: January 22, 190123,22663 years 7 months 2 days

3.King George IIIAscended: October 25, 1760 -

Died: January 29, 182021,64459 years 3 months 2 days

4.King Henry IIIAscended: October 18, 1216 -

Died: November 16, 127220,48356 years 29 days

5.King Edward IIIAscended: January 25, 1327 -

Died: June 21, 137718,41050 years 4 months 25 days

6.Queen Elizabeth IAscended: November 17, 1558 -

Died: March 24, 160316,19844 years 4 months 5 days

answer; (b) limited resource to satisfy virtually unlimited wants;