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A, B and C can individually complete a t...

A, B and C can individually complete a task in 20 days, 16 days and 30 days, respectively. If A and B started working on the task, and they worked for 4 days and left, then the number of days required by C to finish the remaining tasks is:
A, B तथा C अकेले कार्य करते हुए किसी कार्य को क्रमशः 20, 16 तथा 30 दिनों में पूरा कर सकते हैं | यदि Aऔर B ने यह कार्य शुरू किया तथा उन्होंने 4 दिन कार्य करके छोड़ दिया , तो शेष कार्य पूरा करने में C को कितने दिन लगेंगे ?

A

`16 1/2` days

B

13days

C

`12 1/2` days

D

10 days

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