16.38\rbc/;mTgµ=2000x0.28/ -24x20+52x10. =0.56\rA bc/^_=20x24x0.56=268.8 -89.\rB bc/^_= 10x52x0.56=291.2 -89.\r$I¶b^_ A bc 268.8\r B bc 291.2\rK·@ 196 -0.28x700.\r?@ 126 -0.28x450.\rI W 882\rI ¸? 28\rI 28\rhi+, /^_I\rICD?R^_ 168.\rI W 168\r-4. W jklm= -385+217.8+163.4+1415. -14-882-28-168= 1089.2 -89.\r-5. W 234r6¹10001n/opqrst=1089.21000=89.2 -89.\rI?bº6°» 89.2\rIopqrst 89.2\r-6.op/jkr6=268.8+291.2+196+28+1000=1784 -89.\r¼½_¾|¹¿ÀÁ¼/ÃÄ\ÅÆ¡À?RÇÈÉÊË@Ì͹ÎϾ|/¾ÐÑ\rÒÓ/ÔÕÖË×ØÙÚ ¡Û^7@2TÜ/ÝÞßßàáâkãäk/GHÃ7Þ.åæ\rçè@éêëìíî@ÄïäÎϾ|/ðñµòSóôõö=÷ÌøùA