CAT 2025 Geometry & Mensuration — Previous Year Question
Year
CAT 2025
Section
Quantitative
Topic
Geometry & Mensuration
Difficulty
Medium
Question
Slot-1
A solid trophy, consisting of two parts, has been designed in the following manner: the bottom part is a frustum of a cone with the bottom radius 30 cm, the top radius 20 cm, and height 40 cm, while the top part is a hemisphere with radius 20 cm. Moreover, the flat surface of the hemisphere is the same as the top surface of the frustum. If the entire trophy is to be gold-plated at the cost of Rs. 40 per square cm, what would the cost for gold-plating be closest to?
Rs. 3,60,000
Rs. 3,72,000
Rs. 1,12,000
Rs. 5,23,000
Rs. 4,73,000
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