if u connect 3 resistors, having values 2ohm, 3ohm, 5ohm in parallel, will the value of total resistance of will be 2ohm or greater than 5ohm or lie between 2ohm and 5oh? EXPLAIN

If u want only WHether the total resistance is
less than 2 or less than 5 or more than 5 ohms:  there is a Simple way.
When you connect resistances in parallel, resultant resistance is always
smaller than all of them. So it is less than 2 ohms.

[tex]\frac{1}{3}+\frac{1}{2}+\frac{1}{5}=\\
\frac{10}{30}+\frac{15}{30}+\frac{6}{30}=\\
\frac{31}{30}\\\\
R_t=\frac{30}{31} \ \Omega\approx0.97\ \Omega[/tex]