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Question

"A" can complete a task in 15 days, while it takes 25 days for "B" to complete the same task. The ratio of the efficiencies of "A" and "C" is 2:1. If a task takes 30 days for 2A, 3B, and 4C working together, find out the number of tasks that were achieved.

A 50

B 15.05

C 25.12

D 11.6

E none of these

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