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The length of a room is double its br...

The length of a room is double its breadth. The cost of colouring the ceiling at Rs 25 per sq. m is Rs 5000 and the cost of painting the four walls at Rs 240 per sq. m is Rs 64800. Find the height of the room. (a) 3.5m (b) 4m (c) 4.5m (d) 5m

A

4.5 m

B

4 m

C

3.5 m

D

5 m

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A
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S CHAND IIT JEE FOUNDATION-VOLUME AND SURFACE AREA OF A CUBE AND A CUBOID-QUESTION BANK - 23
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