allery10 ದಿನಗಳಲ್ಲಿ ರವಿ ಒಬ್ಬನೇ ಕಂದಕವನ್ನು ಅಗೆಯುತ್ತಾನೆ ಮತ್ತು 15 ದಿನಗಳಲ್ಲಿ ಸುನಿಲ್ ಒಬ್ಬನೇ. ಇಬ್ಬರೂ ಒಟ್ಟಿಗೆ ಅಗತ್ಯವಿದೆ
A8 ದಿನಗಳು
B6 ದಿನಗಳು
C5 ದಿನಗಳು
D7 ದಿನಗಳು
Answer & Solution
Correct answer: B. 6 ದಿನಗಳು
ಒಟ್ಟಿಗೆ ಅವರು ಪ್ರತಿದಿನ ಕಂದಕದ 1/10 + 1/15 = 5/30 = 1/6 ಮಾಡುತ್ತಾರೆ, ಆದ್ದರಿಂದ 6 ದಿನಗಳು.
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