Subject: General Aptitude · Chapter: Area · Exam: · Marks: · Difficulty:
Four equal sized maximum circular plates are cut off from a square paper sheet of area $784 \mathrm{cm}^{2}$. The circumference of each plate is
(a)22 cm
(b)44 cm
(c)66 cm
(d)88 cm
Answer
Answer (as printed): B
Explanation
Side of square paper $=\sqrt{784} \mathrm{cm}=28 \mathrm{cm}$. Radius of each circular plate $=\left(\frac{1}{4} \times 28\right) \mathrm{cm}=7 \mathrm{cm}$. Circumference of each circular plate $=\left(2 \times \frac{22}{7} \times 7\right) \mathrm{cm}$ $=44 \mathrm{cm}$