`'n'` number of alkenes yield `2,2,3,4,4`-pentamethyl-pentane on catalytic hydrogenation and `'m'` number of monochloro structural isomers are possible for this compound.
Report your answer as `(n+m)`.

Answer

4

Explanation

Only one alkene
`H_(3)C-underset(CH_(3))underset(|)overset(CH_(3))overset(|)(C )-underset(CH_(2))underset(||)(C )-underset(CH_(3))underset(|)overset(CH_(3))overset(|)(C )-CH_(3) overset(H_(2)//"catalyst") rarr`H_(3)C-underset(CH_(3))underset(|)overset(CH_(3))overset(|)(C )-underset(CH_(3))underset(|)(CH)-underset(CH_(3))underset(|)overset(CH_(3))overset(|)(C )-CH_(3)`
Three monochloro isomers are possilbe as it has three different types of `'H'` atoms.