alleryಐದು ವರ್ಷಗಳ ಹಿಂದೆ ಒಬ್ಬ ತಾಯಿ ತನ್ನ ಮಗನ ವಯಸ್ಸಿನ ಮೂರು ಪಟ್ಟು ಹೆಚ್ಚು; ಈಗ ಅವರ ವಯಸ್ಸಿನ ಮೊತ್ತ 50. ಮಗ
A10
B12
C20
D15
Answer & Solution
Correct answer: D. 15
ವಯಸ್ಸು m ಮತ್ತು s ನೊಂದಿಗೆ: m - 5 = 3(s - 5) ಮತ್ತು m + s = 50 s = 15 ನೀಡುತ್ತದೆ.
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