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घनाची धार अर्धी ठेवल्यास, त्याचे आकारमान मूळ आकारमानाच्या किती पटीने कमी होते?

A1/3
B1/4
C1/8
D1/2
Answer & Solution
Correct answer: C. 1/8
1. घनाचा आकार = (धार)^3. 2. किनारा अर्धवट केल्याने व्हॉल्यूम = (एज/2)^3 = (धार)^3 / 8 मिळते. 3. त्यामुळे नवीन खंड मूळच्या 1/8 आहे. _स्रोत: RRB ग्रुप D CEN-02/2018 PYQ, Q.12._
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