The sum of the squares of 2 consecutive positive even numbers is is 340

12, 14 are  two consecutive positive even numbers

Step-by-step explanation:

Let x, x+2 are two consecutive positive even numbers

According to given Condition

     or    

     or    

As Number is positive so x = 12

x+ 2= 14

12, 14 are  two consecutive positive even numbers

21 and 22 are two consecutive numbers whose squares, when subtracted, equals 43.

probability for j is 1/4

while

a is 1/6