Set L contains all the positive multiples of 7 that are less than 200. Set O contains all the positive multiples of 10 that are less than 200. 5 ?# n+ Q3 M; X, r8 XIf Set W contains all the numbers that appear in both Set L and O, how many numbers does Set Wcontain? . e+ p( V8 T; rA 47" y+ W; g! O2 ~
B 46 9 O5 \% {& p5 `2 E. ]; z0 FC 45 + i& e0 \ l4 G" H3 k, _D 44! D; Z R- D6 m% Q! l5 o" Z
E 43 2 h1 Q+ h( |+ t) r' o7 T' C & D$ t5 T9 R( k' N7 {
答案是E,但我觉得答案是C啊,有45个才对。难道multiple倍数不包括数字它本身吗?:confused: