C o n f u s e d . . . 10 marla or two 5 marla plots?

Please throw some light whether to buy two plots of 5 marla each worth around 5 lac each (total = around 10 lac) or should one go for 10 marla plot worth around 10 lac? Please consider both options in Bahria Town phase 8 Rawalpindi.

Thanks all!

5 m for short time profit, 10 m for long.