(a) The area of a rectangular field is 3510 m and its length is 78 m. A boy runs around the
field at the rate of 10 km/h. How long will he take to go 8 times around it?
(b) The area of a rectangular sheet is 500 cm?. If the length of the sheet is 25 cm, what is its
width? Also, find the perimeter of the rectangular sheet.
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Answer:
Area of a reactangke = 3584 m² and length = 64 m
Area of a rectangle = l × b
b = 3584 ÷ 64 = 56 m
Perimeter of a reactangle = 2(l + b) = 2(64 + 56) = 240 m
Total distance = 240 × 5 = 1200 m
Time = 1200 ÷ 6 = 200 hours
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