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Kanishk Negi

· started a discussion

· 1 Months ago

not possible (Question: 191203.0 )

how did u arrive at 12/-5???

Question:
A can lay a  railway track between two given stations in 16 days and B can do the same job in 12 days, with help of C, they did the job in 4 days only. Then C alone can do the job in –
Options:
A) 9 \(\cfrac{1}{5}\)days 
B) 9 \(\cfrac{2}{5}\)days 
C) 9 \(\cfrac{3}{5}\)days 
D) 10 days 
Solution:
Ans: (c)


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