ËùÒÔP£½4ԪʱµÄ¹©¸øµÄµãµ¯ÐÔΪ1.6¡£
6£®Ä³ÉÌÆ·µÄÐèÇóµ¯ÐÔΪ0.5£¬µ±¸ÃÉÌÆ·µÄ¼Û¸ñΪ0.50Ôª£¯Ç§¿Ëʱ£¬ÈÕÏúÊÛÁ¿Îª400ǧ¿Ë¡£ÏÖÔÚ¼Û¸ñÉÏÉý20£¥£¬ÎÊ£º¸ÃÉÌÆ·µÄÏúÊÛÊÕÈëÈçºÎ±ä»¯? Ϊʲô? ½â£º
TRl = Pl ¡Á Ql = 0.5 ¡Á 400 = 200 (Ôª)¡£ P2 = 0.5 ¡Á (1+20£¥) = 0.60 (Ôª)£¬ Q2 = 400 ¡Á (1-10£¥) = 360 (ǧ¿Ë)¡£ TR2 = P2 ¡Á Q2 = 0.6 ¡Á 360 = 216 (Ôª)¡£ TR2 ¨C TR1 = 216 - 200 = 16 (Ôª)¡£
Òò´Ë£¬¼Û¸ñÉÏÉý20£¥£¬¸ÃÉÌÆ·µÄÏúÊÛÊÕÈëÔö¼Ó16Ôª¡£ÔÒòÔÚÓÚ¸ÃÉÌƷΪÐèÇóȱ
·¦µ¯ÐԵģ¬¶ÔÓÚÐèÇóȱ·¦µ¯ÐÔµÄÉÌÆ·À´Ëµ£¬¼Û¸ñÓëÏúÊÛÊÕÈëÖ®¼ä³Éͬ·½Ïò±ä»¯£¬Òò´Ë£¬¼Û¸ñÉÏÉý£¬µ¼ÖÂÉÌÆ·µÄÏúÊÛÊÕÈëÔö¼ÓÁË¡£
7£®1986Äê7ÔÂijÍâ¹ú³ÇÊеĹ«¹²Æû³µÆ±¼Û´Ó32ÃÀ·ÖÌá¸ßµ½40ÃÀ·Ö£¬1986Äê8Ôµij˿ÍΪ880ÍòÈ˴Σ¬Óë1985ÄêͬÆÚÏà±È¼õÉÙÁË12£¥£¬ÇóÐèÇóµÄƽ¾ù¼Û¸ñ»¡µ¯ÐÔ¡£
ÓÉÌâÒ⣬֪P1£½32£¬P2£½40£¬Q2£½880£¬Q1£½¡£´úÈ빫ʽ£¬µÃ£º
ËùÒÔÐèÇóµÄ¼Û¸ñ»¡µ¯ÐÔΪ0.57¡£
8£®Ä³¼ÒʳƷ¹«Ë¾¶ÔÆä²úÆ·ÓëÏû·ÑÕßÊÕÈëµÄ¹Øϵ¹À¼ÆÈçÏ£ºQ = 2000 + 0.2 I£¬ÆäÖÐQΪÐèÇóÊýÁ¿£¬IΪƽ¾ù¼ÒÍ¥ÊÕÈ룬Çë·Ö±ðÇó³öI = 5000£¬15000£¬30000ʱµÄÊÕÈ뵯ÐÔ¡£ ½â£º
45
(1)
ËùÒÔI = 5 000ʱµÄÊÕÈ뵯ÐÔΪ0.33¡£
(2)
ËùÒÔI = 15 000ʱµÄÊÕÈ뵯ÐÔΪ0.6¡£
(3)
ËùÒÔI = 30 000ʱµÄÊÕÈ뵯ÐÔΪ0.75¡£
9£®¼ÙÉè¶ÔÐÂÆû³µÐèÇóµÄ¼Û¸ñµ¯ÐÔed = 1.2£¬ÐèÇóµÄÊÕÈ뵯ÐÔeM = 3.0£¬¼ÆË㣺 (1) ÆäËûÌõ¼þ²»±ä£¬¼Û¸ñÌá¸ß3£¥¶ÔÐèÇóµÄÓ°Ï죻 (2) ÆäËûÌõ¼þ²»±ä£¬ÊÕÈëÔö¼Ó2£¥¶ÔÐèÇóµÄÓ°Ïì¡£ ½â£º
(1)
ËùÒÔI = 5 000ʱµÄÊÕÈ뵯ÐÔΪ0.33¡£
(2)
ËùÒÔI = 15 000ʱµÄÊÕÈ뵯ÐÔΪ0.6¡£
(3)
ËùÒÔI = 30 000ʱµÄÊÕÈ뵯ÐÔΪ0.75¡£
10£®ÉèÆûÓ͵ÄÐèÇó¼Û¸ñµ¯ÐÔΪ0.15£¬Æä¼Û¸ñÏÖΪÿ¼ÓÂØ1.20ÃÀÔª£¬ÊÔÎÊÆûÓͼÛ
¸ñÉÏÕǶàÉÙ²ÅÄÜʹÆäÏû·ÑÁ¿¼õÉÙ10£¥?
46
½â£º
ÓÉÌâÒ⣬֪ed = 0.15£¬P = 1.20£¬£¬Óɵ¯ÐÔ¹«Ê½
¿ÉµÃ(ÃÀÔª)£¬
¼´ÆûÓͼ۸ñÉÏÕÇ0.80ÃÀÔª²ÅÄÜʹÆäÏû·ÑÁ¿¼õÉÙ10£¥¡£
11£®Î´Ãûºþ·þ×°¹«Ë¾Éú²úÄÐʽÉÏÒ£¬ÔÚ1997ÄêÖУ¬Õâ¼Ò¹«Ë¾³öÊÛ23000¼þ£¬Æ½
¾ùÿ¼þ13Ôª£¬ÔÚ1998Äê1Ô³õ£¬Î´Ãûºþ·þ×°¹«Ë¾µÄÖ÷Òª¾ºÕùÕߣ¬²©ÑÅËþ·þ×°¹«Ë¾Ï÷¼õÆäÄÐʽÉÏÒµļ۸ñ£¬Ã¿¼þ´Ó15ԪϽµµ½12Ôª£¬½á¹ûʹδÃûºþ·þ×°¹«Ë¾µÄÄÐʽÉÏÒÂÏúÁ¿¼±¾çϽµ£¬ÔÚ1998Äê2ÔºÍ3Ô£¬Ã¿ÔÂÏúÁ¿´ÓÒÔÍùµÄ23000¼þ½µÖÁ13000¼þ¡£ (1) ¼ÆËãÔÚ2Ô¡¢3ÔÂÆÚ¼äδÃûºþ¹«Ë¾ºÍ²©ÑÅËþ¹«Ë¾ÏúÊÛÄÐʽÉÏÒÂÖ®¼äµÄ½»²æµ¯
ÐÔ? ÕâÁ½¼Ò¹«Ë¾Éú²úµÄÄÐʽÉÏÒÂÊDz»ÊǺõÄÌæ´úÆ·? (2) ¼Ù¶¨Î´Ãûºþ¹«Ë¾µÄ¼Û¸ñµ¯ÐÔϵÊýÊÇ2.0¡£¼Ù¶¨²©ÑÅËþ¹«Ë¾Î¬³Ö12ÔªµÄ¼Û¸ñ£¬
ÄÇôδÃûºþ¹«Ë¾ÒªÏ÷¼õ¼Û¸ñ¶àÉÙ²ÅÄÜʹÏúÊÛÁ¿»ØÉýµ½Ã¿ÔÂ23000¼þ¡£ ½â£º
ÓÉÌâÒ⣬֪ed = 0.15£¬P = 1.20£¬£¬Óɵ¯ÐÔ¹«Ê½
¿ÉµÃ(ÃÀÔª)£¬
¼´ÆûÓͼ۸ñÉÏÕÇ0.80ÃÀÔª²ÅÄÜʹÆäÏû·ÑÁ¿¼õÉÙ10£¥¡£
12£®¼ÙÉèA¹«Ë¾ºÍB¹«Ë¾µÄ²úÆ·µÄÐèÇóÇúÏß·Ö±ðΪQA = 200 - 0.2 PA £¬QB = 400
- 0.25 PB £¬ÕâÁ½¼Ò¹«Ë¾ÏÖÔÚµÄÏúÊÛÁ¿·Ö±ðΪ100ºÍ250¡£
47
(1) ÇóA¡¢BÁ½¹«Ë¾µ±Ç°µÄ¼Û¸ñµ¯ÐÔ£»
(2) ¼Ù¶¨B¹«Ë¾½µ¼Ûºó£¬Ê¹B¹«Ë¾µÄÏúÊÛÁ¿Ôö¼Óµ½300£¬Í¬Ê±ÓÖµ¼ÖÂA¹«Ë¾µÄÏú
ÊÛÁ¿Ï½µµ½75£¬ÎÊA¹«Ë¾²úÆ·µÄ½»²æ¼Û¸ñµ¯ÐÔÊǶàÉÙ? (3) ¼Ù¶¨B¹«Ë¾Ä¿±êÊÇıÇóÏúÊÛÊÕÈë×î´ó£¬ÄãÈÏΪËü½µ¼ÛÔÚ¾¼ÃÉÏÊÇ·ñºÏÀí?
(1) ÓÉÌâÒ⣬֪QA£½200¡ª0.2PA£¬QB£½400¡ª0.25PB£¬¶øQA£½100£¬QB£½250£¬
ÔòPA = = 500£¬
PB = = 600
ËùÒÔ£¬A¹«Ë¾ºÍB¹«Ë¾µ±Ç°µÄ¼Û¸ñµ¯ÐÔ·Ö±ðΪ£º
(2) ÓÉÌâÒ⣬֪ QA = 75£¬QB = 300£¬Ôò
PB = = 400
¦¤QA = 75 -100 = -25£¬
¦¤PB = 400 - 600 = -200
¹ÊA¹«Ë¾²úÆ·µÄ½»²æ¼Û¸ñµ¯ÐÔΪ
(3) ÓÉ(1)¿ÉÖª£¬B¹«Ë¾Éú²úµÄ²úÆ·ÔÚ¼Û¸ñΪ600ʱµÄÐèÇó¼Û¸ñµ¯ÐÔΪ0.6£¬¼´Æä
ÐèÇóȱ·¦µ¯ÐÔ¡£¶ÔÓÚȱ·¦µ¯ÐÔµÄÉÌÆ·£¬Æä¼Û¸ñÓëÏúÊÛÊÕÈë³Éͬ·½Ïò±ä¶¯¡£Òò´Ë£¬B¹«Ë¾ÒªÊ¹ÏúÊÛÊÕÈë×î´ó£¬Ó¦¸ÃÌá¼Û¶ø²»Êǽµ¼Û¡£
13£®Ä³È˶ÔÏû·ÑÆ·AµÄÐèÇóº¯ÊýΪP£½100Ò»Q0.5£¬·Ö±ð¼ÆËã¼Û¸ñP£½80ºÍP£½60
ʱµÄ¼Û¸ñµ¯ÐÔϵÊý¡£
48