The molarity of a solution obtained by mixing $750\; mL$ of $0.5\;(M)HCl$ with $250\; mL$ of $2(M)HCl$ will be :

Question

$\begin{array}{1 1} (1) 0.875 M \\ (2) 1.00 M \\ (3) 1.75 M \\ (4) 0.975 M \end {array}$