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A painter has painted one-third of a rectangular wall which is ten feet high. When he will paint another 75 square feet of that wall, he will have finished three-quarters of the job. What is the length (the horizontal dimension) of the wall?

A painter has painted one-third of a rectangular wall which is ten feet high. When he will paint another 75 square feet of that wall, he will have finished three-quarters of the job. What is the length (the horizontal dimension) of the wall? Correct Answer 18 feet

Given that hight of the wall is 10 m Let Base of the wall is x m Area of wall is 10x sq m Three - quarter = 3/4 ATQ = According to the question (3/4 - 1/3) part of wall = 75 sq m So, 1 part of wall = 180 sq m Rectangular base of the wall is 180/10 = 18 m Ans. 18 m

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