Question

A man walks around a circular path 4 times in 12 minutes.The radius of the park is 49 m.Find the speed of the man in km/h.​

Answer 1

Answer:

6.8km/h

HOPE IT HELPS YOU

Answer 2

Answer:

The speed of the man in km/hr  = 6.16 km/hr

Step-by-step explanation:

The radius of the park = 49 m

Circumference of the park = 2πr = 2 × $\frac{22}{7}$× 49 m = 308 m = $\frac{308}{1000}$ = 0.308 km

Time taken to cover the given distance= 12 min = $\frac{12}{60}$ hr = $\frac{1}{5}$ hr

The speed of the man in km/hr = Distance covered ÷ time taken

The speed of the man in km/hr = 4 × circumference ÷ time taken

The speed of the man in km/hr = 4 × 0.308 ÷ $\frac{1}{5}$

The speed of the man in km/hr = 6.16 km/hr