? *3x `1.20%\r=20x3*80%\r=48 `y\r300+48=348 `y\r29-k u b~p348y\r 1 5 1 7 .\r? bcjT
Vi n T i (1100-x)T.\r(1-j ) X=2x[ ( HOO-x) x ( 1-75% )]+150\r1x=2x[(H00-x) xO.25] + 15O\rjx=2x ( 275-025X ) +150\r-=x=55O-O.5x+15O\r.=x=700-0.5x\r.=x+0.5x=700\r2 X=700\rx=600 ;\r1100-600=500 ( ).\r30 -1 ,u bnTd50 T .\r b80+2+5 = 8 (Q)\r3.14x (8+2 )2x5\r= 3.14x16x5\r= 2512(5275a*)\r31-1u b 0 B ' m ' S 2 5 L 2 3 a * .\r?jRQ.\r1:42 = 5\r~ 6\r(*42)x6 =5x*\r6*42x6 -Sx\r*=252\r252*2=504(Q)\r32-1u:j.n504Q.\r&'1()-\r33-1 &'2()20\r&'1()\r33-2 &'2()\r33-3* : , %¡¢V £¤¥, 18¦+§.\r 1 6 1 7 .\r 1 7 1 7
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