There are six soccer teams—J, K, L, M, N, and O—in the Regional Soccer , n) I& d4 V1 Z9 K) i! j
League. All six teams play each Saturday at 10 a.m. during the season. Each * B" r& n* `2 J) F9 F) ?/ q% f
team must play each of the other teams once and only once during the season.
3 p0 U* C o. @ Team J plays team M first and team O second. v' p4 M8 a! H1 e( {
Team K plays team N first and team L third. 4 m6 _! [) m$ l; x
Team L plays team O first. 8 M! V, ^$ ~/ i) U( s
On the first Saturday, which of the following pairs of teams play each other?
% w8 r3 K' d& o* N* u J and K; L and O; M and N
* T. P7 Y4 b. r8 Y J and K; L and N; M and O 7 H0 w9 p: N' ?) ~' M
J and L; K and N; M and O
$ H# j, |4 J& @- x& h J and M; K and L; N and O
' q% n2 U8 ?, l0 J L6 h+ r J and M; K and N; L and O
( U: K. v: }/ g( T ! ~; k7 y2 t1 G5 V1 @) G% J
———————————————————————— V: X$ n& H; `/ ~' m& l
答案:(E) 6 d6 v7 x* M/ N- G4 \( i* `
, d. {4 m# V; z6 U2 d, y& L! T
Which of the following teams must K play second? $ i7 [& F: [3 ?" i, O. G" K
J * q. ?( N( g1 x0 G! w
L
9 `) i$ k- B3 e) N3 H: F M 7 G7 n% |" _: [
N
9 f. Q# Y7 Z# z) G" Z6 t O
# b' r7 v, c8 z+ h2 v
% o+ ~1 n Z) K3 J, R2 E( X# R) L: I————————————————————————
' N% q3 n/ N: r) w$ h7 y9 |答案:(C)
: I- [! F6 R9 f5 [- H: z. Z : _. j' Y, d: c6 B
What is the total number of games that each team must play during the season? ) y! Q0 T: l8 Z$ S5 E- u( g
3
2 T) B( A6 o5 A3 I/ \- e( e9 O# X 4
; t7 _: {9 h# v2 y7 b+ i/ w 5
0 ]1 }+ U3 B& b 6
6 f; O y* p6 ]* T+ G 7 , z. C! ^# l# T# B4 q
e( f1 k6 g w' c: j————————————————————————
4 J8 C9 w+ q# W) B) J答案:(C) # b2 F- S' U) O- h% Q/ _5 ?
6 E9 _8 E: L2 z0 U& @8 y& C
If team M wins 5 games, which of the following must be true?
6 r0 b" R; l. K5 m$ X7 }. G J loses 5 games. ; I7 n1 a3 E- t- D6 \/ {
J wins 4 games. 1 h$ I0 g6 d: j, p8 Y
J wins its first game. 1 V5 Y; l6 _$ W. \- k0 Q
K wins 5 games.
& [! c/ C! s6 V$ x g1 {8 |9 v- S6 X K loses at least one game. - c o# \9 [9 r0 ~
: d# c- f; b) U7 j- _ F( W* V* i———————————————————————— % K- G2 R7 c+ e
答案:(E) |