CAT 2019 Slot 2 QA Q24 Mensuration

Question 24 of the Quantitative Ability (QA) section, CAT 2019 Slot 2, with CAT's official answer.

A man makes complete use of 405 cc of iron, 783 cc of aluminium, and 351 cc of copper to make a number of solid right circular cylinders of each type of metal. These cylinders have the same volume and each of these has radius 3 cm. If the total number of cylinders is to be kept at a minimum, then the total surface area of all these cylinders, in sq cm, is
  1. A
    1044(4 + π)
  2. B
    8464π
  3. C
    928π
  4. D
    1026(1 + π)

Answer: (D) 1026(1 + π) Mensuration MCQ

A worked solution for this question is being written. Meanwhile, practise it in a timed mock and see how other aspirants did.

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