The length, breadth and height of a room are in the ratio 3:2:1. If the breadth and height are halved, while the length is doubled. Then the total area of the 4 walls of the room will be decreased by
30%
18.75%
15%
13.6%
Additional Questions
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Given that 0 < a < b < c < d, which of the following the largest ? |
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