5.33 ( )\r-? . / . 7 40 \r 500 + 700+1 - 40% = 20004\r500+2000 = 25%\r700+2000 = 35%\r27-1` 56789/25% , :;6789/35%.\r! :;6?<56=>?@? BCDEFGH\r700 - 500+500 = 40%\r27-2` :I6?J56=40%.\r100 64 +9 = 4 K \r28-1` L~N/OPQR4K\rS 4/4=16 '(>)\r9/96+16=54 T \r29- 1` UO54TV\r 1 2 1 3 .\r :3.14x1x2x2*5x10\r=3.14x2x2x5x10\r=6.28*2x5x10\r=12.56x5*10\r=62.8x10\r=628 a'()\r3.14x1x2x5x10\r=3.14x2x5x10\r-6.28*5x10\r=31.4x10\r=314a) \r30-K d.016281P( ) Vfg314).\r 184+ i L i =36800000k =368al\r_ tK/VvVv\r368 - 4 40=92-40=52as / t\r31-1` uv/wx252)/t.\r y z 200x{ =75a} \r}5\r~200-75=125a} .\r32-1` Uyz75} VU125}.\r780x3%=23.4 \r33-1` 23.4.\r 1 3 1 3
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