47. The pressure P, volume V and temperature T of a gas in the jar A and the other gas in the jar B at pressure 2P, volume V/4 and temperature 2T, then the ratio of the number of molecules in the jar A and B will be
(a) 1 : 1 (b) 1 : 2
(c) 2 : 1 (d) 4 : 1
Answer-d
(2)