The quality of kernel inside a cocoa-nut is proportional to the volume of the cocoa-nut. A small cocoa-nut costs Rs 5.00. But a big cocoa-nut whose diameter is one and half times that of a small one costs Rs 10.00. Which is more profitable to buy, a big cocoa-nut or a small one ?
 Answers: 2
  on 26/8/16
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