A is 2 times faster than B in completing task,A and B together complete task in 12 days how long will A take to complete the task alone?
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Answer:
18 days
Step-by-step explanation:
let, B's efficiency= x
A's efficiency= 2x
total work= 12*(x+2x)
=36x
A take to complete the task= 36x/2x = 18 days
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