alleryಸಕ್ಕರೆಯ ಬೆಲೆಯು 25% ರಷ್ಟು ಏರಿಕೆಯಾದರೆ, ಖರ್ಚನ್ನು ಬದಲಾಗದೆ ಇರಿಸಿಕೊಳ್ಳಲು ಬಳಕೆ ಎಷ್ಟು ಶೇಕಡಾ ಕಡಿಮೆಯಾಗಬೇಕು?
A15%
B20%
C25%
D30%
Answer & Solution
Correct answer: B. 20%
ಅಗತ್ಯವಿರುವ ಪತನ = r/(100+r) x 100 = 25/125 x 100 = 20%.
** ಚೆಕ್:** ಹೊಸ ಖರ್ಚು = 1.25 x 0.80 = 1.0, ಬದಲಾಗದೆ.
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