Dr.John goes for his daily morning walk an takes 5 rounds of a park with length and breadth 150 m and 50 m respectively. How much does he walk daily? 

Dear student , 

length = l = 150 m 
​​​​​​Breadth = b = 50 m
Perimeter of rectangular park
= 2(l + b) = 2(200m) = 400 m 
Distance walked in 1 round = 400 m 
Distance walked in 5 rounds = 
5×400m = 2000 m = 2 km 

Regards

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