=8 000¡Á50¡Á90%+5 000¡Á40¡Á85%+2 000¡Á30¡Á80%=578 000 ϳ´²µ¥Ì¨Éú²úÄÜÁ¦=£¨306-12£©¡Á2¡Á7.5=4410£¨Ì¨Ê±£© ϳ´²ÐèÒªÁ¿=578 000/4 410=131.1£¨Ì¨£© ϳ´²¶ÌȱÁ¿=131.1-100=31.1£¨Ì¨£©
µÚ11Õ ¹¤³Ì³É±¾·ÑÓùÜÀí
1£® ˼¿¼Ìâ
ÂÔ
2£® µ¥ÏîÑ¡ÔñÌâ
£¨1£©A £¨2£©A £¨3£©D £¨4£©B 3£®¶àÏîÑ¡ÔñÌâ
£¨1£©ABC £¨2£©ABCD £¨3£©ABC £¨4£©AB 4£®¼ÆËã·ÖÎöÌâ
(1)300-300¡Á0.13=261
(2)µ¥Î»±ä¶¯³É±¾b=23200-14200?0.75 a=14200-12000¡Á0.75=5200 (ÍòÔª)
24000-12000Ä¿±ê³É±¾=5200+26000¡Á0.75=24700 (ÍòÔª)
µÚ12Õ ÀûÈó·ÖÅä¹ÜÀí
1£® ˼¿¼Ìâ
ÂÔ
2£®µ¥ÏîÑ¡ÔñÌâ
£¨1£©D £¨2£©A £¨3£©A £¨4£©A £¨5£©C £¨6£©B £¨7£©B £¨8£©D £¨9£©D £¨10£©C £¨11£©C £¨12£©D 3£®¶àÏîÑ¡ÔñÌâ
£¨1£©BC £¨2£©ABCD £¨3£©ABC £¨4£©ABCD £¨5£©ACD £¨6£©ABCD 4£®ÅжÏÌâ
£¨1£©¡Ì £¨2£©¡Ì £¨3£©¡Ì £¨4£©¡Á £¨5£©¡Á £¨6£©¡Á£¨7£©¡Á 5£®¼ÆËã·ÖÎöÌâ
£¨1£©¢Ù1200¡Á50%=600
¢Ú600-250=350
¢Û£¨500-350£©/500¡Á100%=30%
£¨2£©¢ÙÔö·¢¹ÉƱÊýΪ100¡Á10%=10£¨Íò¹É£©£¬Ó¦´Óδ·ÖÅäÀûÈóÖÐת³ö×ʽðÊý¶îΪ100
¡Á10=100£¨ÍòÔª£©£¬¹Êδ·ÖÅäÀûÈóÓà¶îΪ0¡£
¢Ú·¢·Å¹ÉƱ¹ÉÀûºóµÄÿ¹ÉÊмÛΪ£º10/£¨1+10%£©=9.1£¨Ôª£©
¹É¼Û½µµÍ·ù¶ÈΪ£¨9.1-10£©/10=-9%
¢Û1000¡Á£¨1+10%£©¡Á9.1=10 010£¨Ôª£© ¢ÜÆÕͨ¹ÉµÄ¹É±¾½á¹¹²»»á·¢Éú±ä»¯
µÚ13Õ ²ÆÎñÔ¤Ëã
1£®Ë¼¿¼Ìâ
ÂÔ
2£®µ¥ÏîÑ¡ÔñÌâ
£¨1£©A £¨2£©B £¨3£©A £¨4£©B£¨5£©D £¨6£©B £¨7£©D £¨8£©B £¨9£©C £¨10£©D £¨11£©D£¨12£©B£¨13£©C£¨14£©C £¨15£©D 3£®¶àÏîÑ¡ÔñÌâ
£¨1£©ABD £¨2£©ABC £¨3£©ACD £¨4£©AC £¨5£©BC £¨6£©BCD £¨7£©ABCD £¨8£©BCD £¨9£©ABCD £¨10£©ABC £¨11£©ABCD £¨12£©ABC £¨13£©ABC £¨14£©ABCD £¨15£©CD £¨16£©ACD £¨17£©AD £¨18£©ABCD £¨19£©BCD 4£®ÅжÏÌâ
£¨1£©¡Ì£¨2£©¡Á £¨3£©¡Á£¨4£©¡Á £¨5£©¡Á £¨6£© ¡Á£¨7£©¡Ì £¨8£©¡Ì£¨9£©¡Á£¨10£©¡Á£¨11£©¡Á£¨12£©¡Ì£¨13£©¡Ì£¨14£©¡Ì £¨15£©¡Ì£¨16£©¡Á£¨17£©¡Á£¨18£©¡Á £¨19£©¡Á£¨20£©¡Ì 5£®·ÖÎö¼ÆËãÌâ
£¨1£©24500¡Á85%-14700¡Á85%-3000=5330(Ôª) £¨2£©ÏúÊÛÊÕÈë°Ù·Ö±È=110/100=110%
Ô¤ËãÀûÈó×ܶî=110-60¡Á110%-30=14(Ôª)
£¨3£©¢Ù¾ÓªÐÔÏÖ½ðÁ÷Èë=36000¡Á10%+41000¡Á20%+40000¡Á70%=39800 (Ôª)
¢Ú¾ÓªÐÔÏÖ½ðÁ÷³ö=£¨8000¡Á70%+5000£©+8400+£¨8000-4000£©+1000+40000¡Á10%+1900=29900 (Ôª)
¢ÛÏÖ½ðÓàȱ=80+39800-29900-12000=-2020 (Ôª) ¢ÜÓ¦ÏòÒøÐнè¿îµÄ×îµÍ½ð¶î=2020+1400=2120(Ôª)
¢Ý4ÔÂĩӦÊÕÕË¿îÓà¶î=41000¡Á10%+40000¡Á30%=16100(Ôª)