/ P. W# g) T% A7 T" O% C& B Q# `6 | " C: h1 X8 |+ K2 w这个你肯定题目看错了: - A9 o- o8 U. H6 `2 | c' ~! ucountry W is twice the number to country Z / k0 _* n5 D! J2 k9 u( @2 q8 U1 v
the numbers of the commuters to country W is 1.2*30000=36000 ; ~$ k1 U4 {7 q所以 the numbers of the commuters to country Z is 18000& k# w6 ^5 ]) T4 Q- `0 r$ w
% l4 S, S- `( [7 x( R1 P* S0 B2 Pthe average number of vehicles of country Z is 18000/1.5=12000