Question
A can finish a work in $15$ days and B in $10$ days. Working together, in how many days will they finish the work? / A किसी कार्य को $15$ दिन में और B $10$ दिन में पूरा कर सकता है। एक साथ कार्य करते हुए वे कार्य कितने दिन में पूरा करेंगे?
Option 2 : $6$ days / $6$ दिन
Detailed Solution
सही उत्तर $6$ days / $6$ दिन है।
Combined rate $= \frac{1}{15} + \frac{1}{10} = \frac{1}{6}$, so time $= 6$ days. / संयुक्त दर $= \frac{1}{15} + \frac{1}{10} = \frac{1}{6}$, अतः समय $= 6$ दिन।
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Question:
A can finish a work in $15$ days and B in $10$ days. Working together, in how many days will they finish the work? / A किसी कार्य को $15$ दिन में और B $10$ दिन में पूरा कर सकता है। एक साथ कार्य करते हुए वे कार्य कितने दिन में पूरा करेंगे?
Correct Answer: $6$ days / $6$ दिन
Combined rate $= \frac{1}{15} + \frac{1}{10} = \frac{1}{6}$, so time $= 6$ days. / संयुक्त दर $= \frac{1}{15} + \frac{1}{10} = \frac{1}{6}$, अतः समय $= 6$ दिन।