allery30 ಕಿಮೀ/ಹೆಕ್ಟೇರ್ ವೇಗದಲ್ಲಿ ವಿದ್ಯಾರ್ಥಿಯು 5 ನಿಮಿಷ ತಡವಾಗಿ ಮತ್ತು 40 ಕಿಮೀ/ಗಂಟೆ ವೇಗದಲ್ಲಿ 5 ನಿಮಿಷ ಮುಂಚಿತವಾಗಿ ಶಾಲೆಗೆ ತಲುಪುತ್ತಾನೆ. ಶಾಲೆ ಎಷ್ಟು ದೂರದಲ್ಲಿದೆ?
A20 km
B25 km
C24 km
D18 km
Answer & Solution
Correct answer: A. 20 km
d/30 - d/40 = 10 ನಿಮಿಷ = 1/6 h d/120 = 1/6 ನೀಡುತ್ತದೆ, ಆದ್ದರಿಂದ d = 20 ಕಿ.ಮೀ.
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