Answer:
About 4 weeks
Explanation:
x = 1 1/6w
4 1/6 = 1 1/6w
25/6 = 7/6w
6/7 x 25/6 = 7/6w x 6/7
150/42 = w
3.57142857143 = w
w ≈ 4
4 weeks
1 1/6 every week x 4weeks = 4 1/6
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