Find the pressure P of a gas obeying the ideal gas equation

PV = nRT,

if the volume V is 0.200 m³, the temperature T is 298.15 K, and the amount of gas n is 1.000 mol. Take the smallest and largest values of each variable and verify your number of significant digits. Note that since you are dividing by V the smallest value of the quotient will correspond to the largest value of V.