A Engineer Student's GF asked him

A Engineer Student's GF asked him:"kya exam me 1
ya 2 baar back aane se degree ki value
kamho jaati hai.. ??
.
.
Engineer Student ne apni pocket se 500 ka note nikala or pucha iski kya value hai..??
.
.
GF"Rs.500..
.
Engineer Student ne use mutthi me mod k pucha ab.. ??
.

GF:"500..
.
Then he crushed the note with his foot&asked
again..
.
GF:"500
.
.
Engineer Student jaanu hum Engineer bhi isi 500 k
note kitarah hote hai, hume kitna bhi ragad lo hamari value kam nhi
hogi...