A solid metal cylinder of 10 cm height and 14 cm diameter is... — Quantitative Ability and Data Interpretation 2015

Question 53 Quantitative Ability and Data Interpretation 2015 Medium MCQ +1.00 marks · -0.25 negative

A solid metal cylinder of 10 cm height and 14 cm diameter is melted and re-cast into two cones in the proportion of 3 : 4 (volume), keeping the height 10 cm. What would be the percentage change in the flat surface area before and after?

A. 9% B. 16% C. 25% D. 50% E. None of the above

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