Professor to Students: "1 platform 2km lamba hy, Aandh
i chal rah
i hy 60km/h k
i speed se, aur 1 tra
in aa
i aur mashr
iq se maghr
ib k
i taraf chal
i gay
i. tou ab sawal yeh hy k mer
i umar k
itn
i hy?"
Saaray Students ha
iraan ho kar a
ik doosre k
i taraf dekhne lagay, 1 Student ne jawab dene k l
iye haath kharra k
iaa.
Student: S
ir apk
i umar 42 saal hy.
Professor: Good, lek
in tum ne kese calculate k
iaa?
Student: S
ir humare ghar k pass 1 aadm
i rehta hy, woh half mental hy aur usk
i umar 21 saal hy....