Question

The area of a square field is 60025 m? A man cycles along its boundary at 18 km/h. In ho
much time will he return to the starting point?​

Answer 1

Answer:

Area=60025 m square =side^2

Therefore, side of field= 245m

Now, the perimeter or the length of boundary of field= 4*side= 980m

Now, we know that speed=distance/time

But given speed is in km/hr

So, speed in m/s= 18*(1000/3600) =18*(5/18) = 5m/s

Now, speed = distance/ time

So, 5= 980/t

So, time taken= 980/5= 196 seconds

or 3 minutes 16 seconds.

Answer 2

★ Given :

→ The area of a square field = 60025 m.

→ Speed of Cycle of man = 18km/s

★ Need To Find :

→ In how much time will he return to the starting point?

★ Formula Used Here :

• ➮ Area of Square = (Side) ²
• ➮ Time = Distance / Speed

⌬ Conversion Needed :

• ↠ Speed of cycle = 18km/s
• ↠ 18 × 1000 / 60 × 60
• ↠ Speed of Cycle = 5m/s

❍ According to Question :

• ➮ (Side)² = 60025m²
• ➮ Side = √60025m²
• ➮ Side = 245m

⌬ Perimeter of Square :

• ↠ Perimeter of Square = 4 × side
• ↠ Perimeter of Square = 4 × 245m
• ↠ Perimeter of Square = 980m

❒ Calculating Time Taken :

• ➮ Time = Distance / Speed
• ➮ Time = 980 / 5m/s
• ➮ Time = 196 sec

✠ Therefore :

• → In 196 second he will return back to the starting point.

━━━━━━━━━━━━━━━━━