Suppose you roll a 20 sided die twice. What is the probability you will land on the same number for both rolls?	Choose the correct answer
A) 1/10  B) 1/20  C) 1/5  D) 1/25  E) 1/40
The acceptable rolls work when we roll any double: 11, 22, 33, ... 2020. Those are 20 possibilities. Then the die can fall in   20*20= 
<gadget id="calculator">  20*20</gadget>
<output>400</output>
400 ways.   Hence the probability is 20/400= 1/20   Answer: 1/20
<result>B</result>
Suppose you roll a 20 sided die twice. What is the probability you will land on the same number for both rolls?