The total cost of flooring a room at ₹ 8.50 per square metre is ₹ 510. If the length of the room is 8 m, its… · ABC26GN4303
Subject: General Aptitude · Chapter: Area · Exam: R.R.B. 2006
The total cost of flooring a room at ₹ 8.50 per square metre is ₹ 510. If the length of the room is 8 m, its breadth is
(a)7.5 m
(b)8.5 m
(c)10.5 m
(d)12.5 m
Answer
No answer key was printed for this question.
Explanation
Area of the floor $=\left(\frac{510}{8.50}\right) \mathrm{m}^{2}=60 \mathrm{m}^{2}$. ∴ Breadth of the room $=\left(\frac{60}{8}\right) \mathrm{m}=7.5 \mathrm{m}$.