Multiple choice

A tent of height 16 m is in the form of right circular cylinder with radius of base 2 m and height 6 m, surmounted by a right circular cone of the same base. Find the cost of the canvas of the tent at the rate of Rs. 100 per m.

  1. Rs. 12,947

  2. Rs. 13,947

  3. Rs. 14,947

  4. Rs. 15,947
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The cone's height is 16 - 6 = 10 m. Its slant height is sqrt(10^2 + 2^2) = sqrt(104) m, so the canvas area is 2π(2)(6) + π(2)sqrt(104), approximately 139.47 m^2. At Rs. 100 per m^2, the cost is approximately Rs. 13,947.

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