In a school, the ratio of students of class 9 to that of class 10 is 3:2. 30% of the students of class 9 and 10%of the students
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We know that 98mm is the 100% of the diameter of the plant before James watered with the magical solution; after he watered, the diameter of the plant grew to 188.869mm. Let 
be the grew in the percentage of the diameter.
Now we can establish a ratio and solve for:
%
Now that we know the diameter of the plant grew 192.7%, we just need to divide that quantity by 100% to find how many times the diameter grew:
We can conclude that the diameter of the peach <span>become approximately 1.9 times larger after James watered it.</span>
Now we can establish a ratio and solve for
Now that we know the diameter of the plant grew 192.7%, we just need to divide that quantity by 100% to find how many times the diameter grew:
We can conclude that the diameter of the peach <span>become approximately 1.9 times larger after James watered it.</span>