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A can do 40% of a work in 12 days, where...

A can do 40% of a work in 12 days, whereas B can do 60% of the same work in 15 days. Both work together for 10 days. C completes the remaining work alone in 4 days. A, B and C together will complete 28% of the same work in :
A किसी कार्य का 40% भाग 12 दिनों में कर सकता है जबकि B इसी कार्य का 60% भाग 15 दिनों में कर सकता है |दोनों 10 दिनों तक एक साथ कार्य करते हैं | C शेष कार्य 4 दिनों में पूरा करता है | A, B और C एक साथ इसी कार्य का 28% भाग कितने दिनों में पूरा करेंगे ?

A

`2 1/2` days

B

3 days

C

`1 1/2 days

D

2 days

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