alleryಈ ಕೆಳಗಿನ ಯಾವ ಸಂಖ್ಯೆಯು ಪರಿಪೂರ್ಣ ಘನವಲ್ಲ?
A64
B243
C216
D1728
Answer & Solution
Correct answer: B. 243
1. 64 = 4³, 216 = 6³ ಮತ್ತು 1728 = 12³, ಎಲ್ಲಾ ಪರಿಪೂರ್ಣ ಘನಗಳು. 2. 243 ಗಾಗಿ, 6³ = 216 ಮತ್ತು 7³ = 343 ಎಂಬುದನ್ನು ಗಮನಿಸಿ, ಆದ್ದರಿಂದ 243 ಸತತ ಘನಗಳ ನಡುವೆ ಇರುತ್ತದೆ. 3. ಆದ್ದರಿಂದ 243 ಪರಿಪೂರ್ಣ ಘನವಲ್ಲ (ಇದು ವಾಸ್ತವವಾಗಿ 3⁵). _ಮೂಲ: RRB ಗ್ರೂಪ್ D (RRC) PYQ, 27-10-2013, Q.40._
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