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The height of a room is 40% of its semi ...

The height of a room is 40% of its semi perimeter. It costs 260 to paper the walls of the room with paper 50 cm wide at 2 per metre allowing an area of 15 m2 for doors and windows. The height of the room is

A

2.6 m

B

3.9 m

C

4 m

D

4.2 m

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The correct Answer is:
C
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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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