assuming the gas in a container remains at a constant temperature, how could you increase the gas pressure in the container a hundred fold?

From the above statement the temperature and volume (assuming the container is rigid, the volume of the gas is the volume of the  container) are constant.

according to the ideal gas equation, PV= n RT.  where all symbols have their usual meaning, the pressure of a gas is proportional to the number of mole, n. 

from the relation P =(n RT)V , P α n, the higher the number of mole   the higher the pressure of the gas, therefore to increase the pressure to have to add more mole of the gas.

therefore if we want to increase the pressure by hundredth fold we have increase the number of moles n by hundred (100P=100n).

does pumping a tire increase volume or number of moles of air?