Answer:
25days
Explanation:
weight needed to be 300g :
300g - 100g = 200g
if one day the kitten gained 8g so,
200g ÷ 8g = 25days
or
300g = 100g + (8g x d)
300g - 100g = 8d
200g = 8d
200g ÷ 8 = d
25 = d
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