A hall is 15 m long and 12 m broad. If the sum of the areas of the floor and the ceiling is equal to the sum of the areas of four walls, the volume of the hall is:
Correct answer C. 1200
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More Volume and Surface Area questions
See allWater flows through a pipe of internal radius 3.5 cm at a speed of 2 m per second. Taking π = 22/7, how many litres of water flow out in one minute?
Correct answer A. 462 litres
The inside of a hemispherical dome of radius 7 m is to be whitewashed at Rs. 12 per square metre. Taking π = 22/7, what is the cost?
Correct answer D. Rs. 3,696
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A cylindrical pillar has a diameter of 70 cm and a height of 6 m. What is the cost of painting its curved surface at Rs. Taking π = 22/7, 25 per square metre?
Correct answer B. Rs. 330
An open cubical tank (without a lid) has an edge of 1.5 m. What is the cost of painting its outer surface, excluding the base it stands on and the open top, at Rs. 40 per square metre?
Correct answer B. Rs. 360
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