Problem on understanding Ideal gas equation and average speed of molecule

Two flasks $\text{A}$ and $\text{B}$ have capacity 1 and 4 $l$ , respectively, and each of them contains 1 mole of gas. The temperature of the flask is adjusted such that average speed of molecules in $\text{A}$ is twice as those in $\text{B}$ . The pressure in the flask $\text{A}$ would be $\text{\_\_\_\_\_\_\_\_\_\_}$ .