1.

A and B can do a job together in 7 days. A is 134134 times as efficient as B. The same job can be done by A alone in :

A. 913913days913913913913913913913131133913
B. 11 days
C. 12141214days12141214121412141214121412141411441214
D. 16131613days16131613161316131613161316131311331613
Answer» B. 11 days


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