Number of carbonyl compounds (total including stereoisomers) with the molecular formula ${\text{C}}_{\text{5}}{\text{H}}_{\text{10}}\text{O}$  that gives positive 2,4-DNP test = x, positive tollens test =y, and
Iodotorm test = Z ,  $\frac{x+z}{y}=P,$ 
Then what is the value of “P”