Discuss Forum
1. A painter has painted one-third of a rectangular wal which is ten feet high. When he will paint another 75 sq. feet of that wall, he will have finished three-quarters of the job. What is the length of the wall?
- A. 10 feet
- B. 10 feet
- C. 10 feet
- D. 10 feet
Answer: Option C
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
Post your comments here: