\róñÛú' 240MJ.\r147. ûüñcýÌþÿ450 0@P`p2 ?\n180 0p??p\rP`?? \r !"P`x ??.\r180 450\r2 x\r180x=2X450\r2x450\rx= 5\r$ 7 9 % & 8 1 %.\r'!P`5 ??.\r148. ,-./0123452p6?78p9?\n24 0p15??;<=?>8p\r?@AB? 2 5 % , <=? ?EF?? \r !"<=? ? x ?\r24X 1 - 25% x=24X15\r18x=24X15\r24x15\r18\rx=20\r'!<=? ? 20??.\r149. MNN3,O?PQ06RSTP.6?UQ9?\n90 0p2 ??.<\r=?VWXPp9??YZ\n60 0pEF??<= \]^\r !"x ??<=p\r60x=90X2\rx=3\r'!3 ??<=.\r150. ,`abcde@fag48000pahi@ g2! 3 , j?`de@kl\r !2+3=5\r48004-2 = 2400 0\r2400x2e X 32400x1\r=960X 1440\r= 1382400 ob0\r'!?`e@klg1382400ob0.\r$ 8 0 % & 8 1 %.\r$ 8 1 % & 8 1 %
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