Question

A rectangle field is 80m by 70m. A man walks round it at the rate of 3km per hour. what time will he take in making 5 rounds ?​

Answer 1

Step-by-step explanation:

HOPE YOU UNDERSTAND IT

Answer 2

Answer: Time taken =30 mins =0.5 hr

Step-by-step explanation:

The perimeter of the field =2×(80+70)=2×150=300

Distance to be covered in 5 rounds =5×300=1500m = 1.5km

Speed=Distance/Time

Time=Distance/Speed

Speed=3 km/hr

Time=1.5/3=0.5 hr=0.5×60=30 mins