alleryನದಿಯ ಕೆಳ ಹರಿವಿನ ವೇಗ 18 ಕಿಮೀ/ಗಂ ಮತ್ತು ಮೇಲ್ಮುಖ ಹರಿವಿನ ವೇಗ 10 ಕಿಮೀ/ಗಂ, ನದಿ ಎಷ್ಟು ವೇಗವಾಗಿ ಹರಿಯುತ್ತದೆ?
A2 km/h
B8 km/h
C14 km/h
D4 km/h
Answer & Solution
Correct answer: D. 4 km/h
ಸ್ಟ್ರೀಮ್ ವೇಗವು ಅರ್ಧದಷ್ಟು ವ್ಯತ್ಯಾಸವಾಗಿದೆ, (18 - 10) / 2 = 4 ಕಿಮೀ/ಗಂ.
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