Is this correct - Rs.1 is equal to 1 paisa

Question

yesterday got a SMS, and can any one explain it....

One Re= 100ps 
=10ps x10ps (Notice the how the equation goes haywire from here) 
=0.1Re X0.1Re 
=0.01Re 
= 1 paisa

confused... can any one explain it...

Answer 1

Dimensionally, $$100ps\ne10ps\times10ps=100(ps)^2\\0.01Re\ne0.1Re\times0.1Re=0.01(Re)^2$$

So,

$$1 Re= 100ps =10 \times10\; ps =10 \times0.1\;Re =1 Re\\ \boxed{1Re = 100 ps}$$