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mathemactics
A merchant bought a chair for $500 and a desk for $750.He sold the chair at a loss of 30% and the desk at a profit of 24%.Find this profit or lost per cent on the whole.
最佳解答:
椅子的售價為 $500 x (1-30%) = $350 桌子的售價為 $750 x (1+24%) = $930 全部交易盈利為 $350+$930 - ($500+$750) = $1280 - $1250 = $30 2006-11-02 22:34:59 補充： SORRY 睇漏左 per cent= $30/$1250= 0.024 = 2.4%
其他解答:
2.4%.|||||chair=500x0.7=350 desk=750x1.24=930 [(350+930)-(500+750)/(500+750)]x100%=2.4%profit|||||The difference = $500 *(-30%) + $750*(24%) = -$150 +$180 = $30 So, it is a profit. The profit per cent is = $30 / ($500 + $750) * 100% = 2.4%6FE6251C5F3F8A0F
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發問:A merchant bought a chair for $500 and a desk for $750.He sold the chair at a loss of 30% and the desk at a profit of 24%.Find this profit or lost per cent on the whole.
最佳解答:
椅子的售價為 $500 x (1-30%) = $350 桌子的售價為 $750 x (1+24%) = $930 全部交易盈利為 $350+$930 - ($500+$750) = $1280 - $1250 = $30 2006-11-02 22:34:59 補充： SORRY 睇漏左 per cent= $30/$1250= 0.024 = 2.4%
其他解答:
2.4%.|||||chair=500x0.7=350 desk=750x1.24=930 [(350+930)-(500+750)/(500+750)]x100%=2.4%profit|||||The difference = $500 *(-30%) + $750*(24%) = -$150 +$180 = $30 So, it is a profit. The profit per cent is = $30 / ($500 + $750) * 100% = 2.4%6FE6251C5F3F8A0F
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