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UPSC CDS 2 2018 Math Paper

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Question : 73

Total: 100

Walls (excluding roofs and floors) of 5 identical rooms having length, breadth and height 6 m, 4 m and 2.5 m respectively are to be painted. Out of five rooms, two rooms have one square window each having a side of 2.5 m. Paints are available only incans of 1 litre; and 1 litre of paint can be used for painting 20 square metres. The number of cans required for painting is

10
12
13
14

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