Subject: General Aptitude · Chapter: Area · Exam: 2006 · Marks: · Difficulty:
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
Answer (as printed):
Explanation
Area of the floor $=\left(\frac{510}{8.50}\right) \mathrm{m}^{2}=60 \mathrm{m}^{2}$. ∴ Breadth of the room $=\left(\frac{60}{8}\right) \mathrm{m}=7.5 \mathrm{m}$.