The length and breadth of a playground are 62 m 60 cm and 25 m 40 cm, respectively. Find the cost of turfing it at *2.50 per square metre. How long will a man take to go three times round the field if he walks at the rate of 2 metres per second. The prog octongulor field in 34.03 ares and its length is 54 m. Find its breadth and perimeter.
