well bmin is not 10

It is actually ....................... Youwant me to tell u ???

ne way   Kirpal

could u please explain in detail how u r telling bmin is 10 . In that process u may find ur error

find the probability that a pin falling on a ruled sheet

intersects one of the lines given the separation

btw two lines is equal to the length of the pin

solve it if u can!!!

find minimum of      (a^2 + 1)/ (b+c) where a,b,c cyclically change and a,b,c>0