An ant starting from origin can move along a 6 x 4 grid taking 1 step at a time either in +ve y direction or +ve x direction. What is the probability that it will pass through (2,3)
a) 5/21
b) 3/20
c) 1/21
d) 4/21
e) 1/10
a) 5/21
b) 3/20
c) 1/21
d) 4/21
e) 1/10
