R1 and R2 are the 2 resistances connected in parralel. Compare the current through R1 and R2 when 1- R1>R2 2-R1=R2 3-R1

I = V/R (Ohms law)

 

Since, in a parallel connection, V remains the same across 2 resistors

Hence, I1/ I2 = R2/R1

 

a. So, if R1>R2

Then, I2>I1

 

b. If R1 = R2 

then, I1 = I2

 

Your third part is not written clearly. But, whatever be the condition between R1 and R2, you can use the above logic to compare the current through R1 and R2.