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1. 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. 18 feet
- B. 18 feet
- C. 18 feet
- D. 18 feet
Answer: Option A
Explanation:
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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