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I. ` 8x+7y = 135" "` II.` 5x+6y = 99` III.` 9y+8z= 121`A. `x lt y = z `B. ` x le y lt z `C. ` x lt y gt z `D. ` x = y gt z ` |
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Answer» Correct Answer - D By equation `I xx 5 - II xx 8` `{:(40x+35y=675),(40x+48y=792),(-" "-" "-),(bar(" "-13y=-117)):}` ` rArr y = 9` From equation I, ` 8x+7xx9 = 135` ` rArr 8x = 135 - 63 = 72` ` rArr x = 9` From equation III, ` 9xx9+8z = 121` ` rArr 8z = 121 -81 = 40` ` rArr z = 5` Clearly, ` x = y gt z ` |
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