Subject: General Aptitude · Chapter: Area · Exam: 2008 · Marks: · Difficulty:
How many metres of carpet 63 cm wide will be required to cover the floor of a room 14 m by 9 m?
(a)185 m
(b)200 m
(c)210 m
(d)220 m
Answer
Answer (as printed):
Explanation
Area of the floor $=(14 \times 9) \mathrm{m}^{2}=126 \mathrm{m}^{2}$. ∴ Length of the carpet $=\left(\frac{126}{63} \times 100\right) \mathrm{m}=200 \mathrm{m}$