A square playground measures 1127.6164 sq.m. If a man walks \(2\f
| A square playground measures 1127.6164 sq.m. If a man walks \(2\frac{9}{{20}}m\) a minute, the time taken by him to walk one round around it is approximately:
A. 50.82 min
B. 54.82 min
C. 54.62 min
D. 50.62 min
Please scroll down to see the correct answer and solution guide.
Right Answer is: B
SOLUTION
As we know,
Area of square shape playground = a2
⇒ a2 = 1127.6164
⇒ a = √1127.6164
⇒ a = 33.58 m
Perimeter of playground = 4 × 33.58 = 134.32 m
Speed of man = 49/20 m/min
∴ Time to covered 134.32 m distance = 134.32/(49/20) = 54.82
