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Garden shears
Steel: the shears have 0.4 kg of high quality steel in the final product. The manufacturing process loses 5% of all steel put in . Steel costs $4000 per tonne ( 1 tonne = 1000kg)This was an extract from a past year question in june 2010 and the answer was like this :
(0.4/0.95)$4.00= $1.68. So, sir what i would like to ask u is: what if i used this way =0.4kg*0.95*$4= $1.52 so what makes difference for these two method? Can u give a simple way to understand for these two scenarios ?
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