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The cost of colouring a conical tomb at ₹80 per 100 m² is ₹440, and its slant height is 25 m. The volume (in m³) of material contained in i…

3011Medium DSSSB TGT Computer Science 0 replies 1 views

The cost of colouring a conical tomb at ₹80 per 100 m² is ₹440, and its slant height is 25 m. The volume (in m³) of material contained in it is (use π = 22/7):

A1001
B1232
C924
D1078

Correct answer: B

Explanation

Curved surface area = (440/80) × 100 = 550 m² = πrl, so r = 550 × 7/(22 × 25) = 7 m. Height = √(25² − 7²) = 24 m. Volume = (1/3)(22/7)(49)(24) = 1232 m³.

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