24 coach ki ek train hoti hai aur agar fourth floor tak ho jaye to 24 (Number of coach) x 4 (Total Floor) x 72 (Number of birth in single coach) = 6912 births train mein ho jayengi. abhi sirf 24 (Number of coach) x 72 (Number of birth in single coach) = 1728 birth hi hoti hain.