Question 78
In a class of 72 children, children are seated in rows and columns in such a way that the number of children in each row is 12.5% more than the number of children in each column. How many children are there in each row ?
Solution
let the number of children in each column be x.Thus, the number of children in each row is 1.125
given, total number of children=72=x(1.125x)
∴x=8.
thus, number of children in a row=1.125x=9
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