A sales representative plans to visit each of six companies—M, N, P, Q, R
) r/ r9 y; F; u L+ ?' L9 R+ band S—exactly once during the course of one day. She is setting up her
9 Y! |0 j+ f0 Qschedule for the day according to the following conditions: 1 ]4 c. {$ K4 m9 M. C2 G
She must visit M before N and before R.. . W7 X, v8 p4 z) k0 g
She must visit N before Q. 6 i' y! m4 g& t" I) {/ ]# U. U& D, T8 m
The third company she visits must be P. ! K% Y2 x' X$ P9 }
Which of the following could be the order in which the sales representative ; H. \$ w4 m6 k+ j/ t
visits the six companies?
- ^' r( i4 z$ H: x( f* q M, R, N, Q, P, S
3 x. [0 T! S1 V M, S, P, N, R, Q : W! N$ O m' o# d- s' P' ^' r
P, R, M, N, Q, S
: P0 M) A- O' b& {0 a P, S, M, R, Q, N 0 W+ `0 x; d( N" x( W
Q, N, P, R, S, M ) H# Y; {7 J, }$ E9 y
% Y% g: d: V/ E! N4 t! C
———————————————————————— ( C5 H* Y1 Q# u& g! ~- h' R
答案:(B) ) T8 D6 D u' I! B1 T/ N/ g, E
( ^ ?# \& }. W1 W7 j( v
Which of the following must be true of the sales representative’s schedule / @1 X- g4 |0 a) f3 S6 J5 l
for the day? 1 K5 ]9 |2 n O% b- k
She visits M before Q. 4 [7 s% q. q: G; ]9 ~
She visits N before R.
( m/ u7 ?. b8 u: r& M She visits P before M. w( b' z8 G0 j0 ^' t/ Z. {2 e: ?
She visits P before S. 2 S9 ]8 I$ k; Z" E" a3 Q1 B
She visits Q before R.
- O) i6 a/ f9 u3 u& _ / a& V% j, r, Z3 [2 @
———————————————————————— * e4 R2 j) d) U( p' o- l$ a6 ~" K
答案:(A)
9 K# }: w" z' l$ F ' L* \( P; J4 u; K0 n& d
If the sales representative visits S first, which company must she visit , }. k; E& p0 Q; A
second?
4 N- \0 f2 p8 n" T6 o4 u; M M . }2 T; y+ @, @0 o# k
N
% s, H! s y `/ x& t+ ? P 7 F! x; G: p5 G' F3 Q- |
Q - _/ p I% _+ p1 H& @
R
0 j5 h; h6 Y1 e, F/ W$ J
6 u4 j5 E4 d- {4 w0 h1 B. q s————————————————————————
/ {! A: \" d; `答案:(A) . |' n# V( _0 H6 Z: F' O, F
3 S2 n& j& q- {. iWhich of the following could be true of the sales representative’s schedule?
4 U! `0 T i& ]0 G% I She visits M third. * |% g* ^# @% b
She visits N sixth. ; x" D8 l5 s1 j
She visits P first.
) j7 [4 u2 E) U. u( t+ y She visits Q second. ! {5 U' q5 I% W" ?6 q7 S4 R
She visits R sixth.
: u) K1 l( @$ Y$ ?' D9 S2 @: q5 ?1 \9 y" t
* E9 t$ m. ]7 y* K) X0 F4 \————————————————————————
' U, n) F9 ^) `答案:(E) ( e0 G. Y8 F: g$ g, W7 m
: E4 y2 H4 P3 m: R$ c
If the sales representative visits Q immediately before R and immediately
, Q1 u$ s0 P* s* _after S, she must visit Q
" ~% F6 x* z" q% i+ V1 E1 C' {/ F first f ]7 O. A2 W3 `. M Z
second 0 T' K& G3 L) g5 e; P( x, w$ {0 R2 l& a; q
fourth
1 r- P% R3 k7 R4 f+ y1 E5 u2 P fifth
4 Q! p- A7 P( [4 A0 P6 k9 m sixth . ^2 C% G+ {8 j, Y6 ?
/ A3 b: W: L, Q; b! `
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* G5 b( w& e* x) B. p答案:(D) |