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A 10 दिसांनी आनी B 15 दिसांनी एक काम सोंपयता. एकठांय काम केल्यार कितले दीस?

A5 दीस
B7 दीस
C6 दीस
D8 दीस
Answer & Solution
Correct answer: C. 6 दीस
एकत्रीत दर = 1/10 + 1/15 = 5/30 = 1/6 दर दिसा काम करतात. एकूण वेळ = 6 दीस.
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