The rule of given table is (a÷2)-(b÷3).
Step-by-step explanation:
From the given table it is clear that
8 becomes 3
24 becomes 9
40 becomes 15
Rule
(8÷2)-(3÷3) = (4-1) = 3
(24÷2)-(9÷3) = (12-3) = 9
(40÷2)-(15÷3) = (20-5) = 15
So, the equation will be
(a÷2)-(b÷3)
