If a 3-digit integer is selected at random from the integers 700 through 899, inclusive, what is the probability that the second digit is one greater then the first digit, and the third digit is one greater than the second digit?
Options:
A) 2/225	B) 2/200	C) 8/700	D) 1/50	E) 1/200
Hundreds digit can be 7 or 8   If the hundreds digit is 7, then the tens digit has to be 8 and the units digit has to be 9   If the hundreds digit is 8, then the tens digit has to be 9 and the units digit has to be 10   A digit has to fall between 0 and 9, so 10 cannot be a digit   The number is 789   Total numbers between 700 and 899 = (899-700)+1= 
<gadget id="calculator">(899-700)+1</gadget>
<output>200</output>
200   Probability= 1/200   Answer 1/200
<result>E</result>
If a 3-digit integer is selected at random from the integers 700 through 899, inclusive, what is the probability that the second digit is one greater then the first digit, and the third digit is one greater than the second digit?