If the cost of a diamond varies directly with the square of its weight and if the weight of the
diamond is 5 grams, then the

1 thought on “If the cost of a diamond varies directly with the square of its weight and if the weight of the<br />diamond is 5 grams, then the”

1. Answer:

   Cost of diamond =k(weight)

   2

   8000=k(10)

   2

   k=

   100

   8000

   =80

   Diamond was broke into two pieces = 3x+2x=10,

   5x=10⇒x=2

   Ist part: 3x=6

   IInd part: 2x=4

   Ist part; cost⇒80×36=2880

   IInd part; cost⇒80×16=1280

   Total cost = 2880+1280=4160

   So loss = 8000−4160=3840

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