Note: AR and SR is equal, because of gender. R is girl and A and S are boys.. so that's why they're equal.
suppose
boy = 1
girl = 1
So it means A, R and S = 1
1 = 1
hogaya na equal. ab aaghe dekho
AR = SR
we can say mathematically,
A*R = S*R ( mathematically it is not required to show multiplication sign )
A*R
------- = S
R
R both crossed. no need of R ;)
A = S
both are equal ;).
A
-- = 1
S
at the end, milegha kisi ko kuch nahi, no R for anyone ;).
:D