浜嬫キ(y猫)鍠綅鑰冭│鑱锋脯鎶€宸э細甯歌鍒╂饯鍟忛鐨勮В椤屾柟娉�

鍒╂饯鍟忛鏄叕鑱烽鑰冭│涓瘮杓冨父瑕嬬殑椤屽瀷銆傛兂瑕佸皪姝ら鐨勯鐩啛绶存帉鎻�锛岄鍏堝皪浜庝粈涔堟槸鍒╂饯鍟忛瑕佺悊瑙�锛屽嵆鍒╂饯鍟忛鐨勫叕寮忚鐔熸倝锛屽啀灏辨槸闂�(gu膩n)浜庡埄娼ゅ晱椤岀殑瑙ｉ鏂规硶锛屼竴浜涘父瑕嬬殑鍒╂饯鍟忛瑙ｉ鏂规硶涔熺浉灏嶅浐瀹�锛屽鏄撴帉鎻�锛屼篃鏄€冭│涓彲浠ョ埈鍙栨嬁鍒嗙殑涓€椤為鐩�銆傛垜鍊戝彲浠ュ緸浠ヤ笅閫欏叐鍊嬫柟闈㈠幓瀛�(xu茅)缈�(x铆)濡備綍瑙ｆ焙鍒╂饯鍟忛銆�

涓€銆佸埄娼ゅ晱椤岀殑姒傚康鍙婂叕寮�

鍒╂饯锛氬埄娼ゆ槸閵峰敭鐨勬敹鍏ユ墸闄ゆ垚鏈児鏍煎悗鐨勪綑椤嶃€�

鍒╂饯鐜囷細鍙嶆噳(y墨ng)涓€瀹氭檪鏈熷埄娼ゆ按骞崇殑鎸囨(bi膩o)锛屾寚鍒╂饯鑸囨垚鏈殑姣旂巼銆�

灏嶄簬鍒╂饯鍟忛锛岀爺绌剁殑涔熸槸鍞児銆佹垚鏈€佸埄娼�銆佸埄娼ょ巼浠ュ強鎵撴姌鐨勫晱椤�銆傚皪浜庨€欎簺姒傚康鎴戝€戞洿濂界殑鍙互閫氶亷鍏紡渚嗕簡瑙�銆�

鍒╂饯=鍞児-鎴愭湰

鍒╂饯鐜�=鍒╂饯/鎴愭湰=(鍞児-鎴愭湰)/鎴愭湰涓€鍞児/鎴愭湰-1

鍞児=鎴愭湰×(1+鍒╂饯鐜�)

鎴愭湰=鍞児/(1+鍒╂饯鐜�)

鎵撴姌鐜�=鎵撴姌鍚庣殑鍞児/鍘熶締鐨勫敭鍍�=(1-鎶樺悗鐨勫埄娼ょ巼)/(1+鍘熶締鐨勫埄娼ょ巼)

浜�銆佸埄娼ゅ晱椤岀殑甯歌瑙ｉ鏂规硶

鍒╂饯鍟忛甯歌鐨勮В椤屾柟娉曟湁鏂圭▼娉曘€佺壒鍊兼硶銆�

鏂圭▼娉曪細閫氶亷椤屽共鎵€绲︾殑宸茬煡姊濅欢锛屾壘鍒扮瓑閲忕殑闂�(gu膩n)绯�锛屽埄鐢ㄥ叕寮忛€�(j矛n)琛屽垪寮忔眰瑙�銆�

渚�1. 鐢插晢搴楃敤8000鍏冭臣閫�(j矛n)鑻ュ共浠跺悓娆惧瑁濓紝瀹氬児58鍏�锛屽叏閮ㄥ敭鍑�;涔嬪悗鍙堢敤17600鍏冭臣閫�(j矛n)鍚岀ó澶忚锛屾暩(sh霉)閲忔槸绗竴娆＄殑2鍊�锛屾瘡浠堕€�(j矛n)鍍规瘮绗竴娆″4鍏冿紝浠嶆寜鍘熷畾鍍瑰嚭鍞�锛屽叏閮ㄥ敭鍑恒€傚晱瑭插晢搴楀叡鐩堝埄澶氬皯鍏�?

A.3600 B.5600 C.9200 D.9800

銆愯В鏋愩€戝凡鐭ラ骞蹭腑绲﹀嚭鍏╂璩奸€�(j矛n)鐨勫瑁濈殑鏁�(sh霉)閲�锛岀浜屾鏄涓€娆＄殑2鍊�锛屼互鍙婅不绛変簬姣忎欢鐨勯€�(j矛n)鍍逛箻浠ヨ臣閫�(j矛n)鐨勬暩(sh霉)閲忕⒑绔嬬瓑閲忛棞(gu膩n)绯汇€傝ō(sh猫)鐢插晢搴楃涓€娆¤臣閫�(j矛n)澶忚 x 浠�锛屾瘡浠剁殑閫�(j矛n)鍍圭偤 y 鍏�锛屽墖绗簩娆¤臣閫�(j矛n)澶忚 2x 浠�锛屾瘡浠剁殑閫�(j矛n)鍍圭偤(y+4)鍏�銆�

鏍规摎(j霉)椤屾剰鏈� xy=8000……鈶�

2x×(y+4)=17600……鈶�

灏団憽寮忓睍闁嬶紝骞跺皣鈶犱唬鍏�锛屽彲瑙ｅ緱 x=200锛寉=40銆�

鍓囩涓€娆¤臣閫�(j矛n)鐨勫瑁濆敭鍑虹泩鍒� 200×(58-40)=3600 鍏�;绗簩娆¤臣閫�(j矛n)鐨勫瑁濆叏閮ㄥ敭鍑虹泩鍒� 2×200×(58-40-4)=5600 鍏�銆傚洜姝よ┎鍟嗗簵鍏辩泩鍒� 3600+5600=9200 鍏冦€傞伕闋呯偤C銆�

鐗瑰€兼硶锛氬埄娼ゅ晱椤屼腑锛岀暥(d膩ng)椤屽共鎵€绲︾殑鐐虹浉灏嶆暩(sh霉)锛屾墍姹傛豢瓒充箻闄ら棞(gu膩n)绯�锛屼笖灏嶆噳(y墨ng)閲忔湭鐭ョ殑椤岀洰涓彲浠ヨō(sh猫)鐗瑰€兼眰瑙ｃ€�

渚�2. 鍟嗗簵璩奸€�(j矛n)鍏╃ó鐜╁叿锛屽凡鐭ョ敳绋帺鍏风殑閫�(j矛n)鍍规槸涔欑ó鐜╁叿閫�(j矛n)鍍圭殑90%锛屼笖鍏╃ó鐜╁叿鐨勯€�(j矛n)璨ㄩ噺鐩稿悓锛屽師瑷堝妰鍧囨寜鐛插埄15%鍞嚭锛岀暥(d膩ng)涔欑帺鍏峰彧鍞嚭30%锛岀偤浜嗙洝蹇洖绫犺硣閲�锛屽晢搴楁焙瀹氬皣涔欑帺鍏锋寜鐓х敳鐜╁叿鐨勫敭鍍归姺鍞�锛岄偅涔堣┎鍟嗗簵鏈€绲傜嵅鍒╃偤澶氬皯?

A.9.6% B.10.7% C.11.6% D.13.1%

銆愯В鏋愩€戣ō(sh猫)涔欏晢鍝侀€�(j矛n)璨ㄥ児鏍�1鍏冿紝閫�(j矛n)璨ㄩ噺鐐�10鍊�锛屾牴鎿�(j霉)椤屾剰锛岀敳鍟嗗搧鐨勯€�(j矛n)璨ㄥ児鏍肩偤0.9鍏冿紝閫�(j矛n)璨ㄩ噺鐐�10鍊�锛屾墍浠ョ敳鍟嗗搧鐛插緱鍒╂饯鐐�0.9×0.15×10=1.35锛屽敭鍍圭偤0.9×(1+0.15)=1.035锛屾墍浠ヤ箼绋晢鍝佺殑鍒╂饯鐐�1×0.15×3+(1.035-1)×7=0.695锛屾墍浠ョ嵅鍒╃偤(1.035+0.695)÷(9+10)≈10.7%銆傞伕闋呯偤B銆�

姹傝В鍒╂饯鍟忛鐨勯鍨嬫檪锛岄渶瑕佸皪浜庡埄娼ゅ晱椤岀殑鍩烘湰姒傚康鍙婂叕寮忕啛绶撮亱(y霉n)鐢�锛岄€氶亷灏嶄簬椤岀洰鐨勭悊瑙ｏ紝閬告搰鍒╃敤鏂圭▼鎴栫壒鍊肩殑鏂规硶閫�(j矛n)琛屾眰瑙ｅ嵆鍙�銆傞€氶亷浠ヤ笂鐨勫叐閬撲緥椤岀殑璎涜В锛屽ぇ瀹跺皪鍒╂饯鍟忛鐨勮В椤屾柟娉曟湁浜嗘洿濂界殑瑾�(r猫n)璀�锛屽彲浠ユ寜鐓т笂闈㈡椤為鍨嬬殑璎涜В鏂规硶澶氬姞绶寸繏(x铆)锛岀啛绶存眰瑙�銆�

浠ヤ笂灏辨槸“浜嬫キ(y猫)鍠綅鑰冭│鑱锋脯鎶€宸э細甯歌鍒╂饯鍟忛鐨勮В椤屾柟娉�”鐨勫叏閮ㄥ収(n猫i)瀹�銆傞粸鎿婁笅鏂�鍏嶈不涓嬭級鎸夐垥锛屽彲鍏嶈不鐛插彇浜嬫キ(y猫)鍠綅鑰冭│鍌欒€冭硣鏂欍€傚皬绶ㄥ湪閫欓噷绁濆ぇ瀹惰惉浜嬮爢鎰�锛屾棗闁嬪緱鍕�!!!2020骞村悇鐪佷簨妤�(y猫)鍠綅绲�(t菕ng)鑰冨畨鎺掍篃鍙互鎻愪笂鏃ョ▼鍟�!!!鐐哄強鏅傜嵅寰楀悇浣嶈€冪敓鎵€鍦ㄧ渷浠�2020骞翠簨妤�(y猫)鍠綅绲�(t菕ng)鑰冨牨鍚嶆檪闁�銆佹簴(zh菙n)鑰冭瓑鎵撳嵃鏅傞枔绛夎€冭│閲嶈鏅傞枔绡€(ji茅)榛炰俊鎭�锛屾帹钖﹀悇浣嶈€冪敓浣跨敤鐠�(hu谩n)鐞冪恫(w菐ng)鏍� 鍏嶈不闋�(y霉)绱勭煭淇℃彁閱�鏈嶅嫏(w霉)锛岄爯(y霉)绱勬垚鍔熷彲鐩℃棭鐛插緱閫氱煡鍝�銆�