An oblong piece of ground measures 19m 2.5dm by 12m 5dm.From center of each side of the ground, a path 2m wide goesacross to the center of the opposite side.What is the area of the path ?



An oblong piece of ground measures 19m 2.5dm by 12m 5dm.From center of each side of the ground, a path 2m wide goesacross to the center of the opposite side.What is the area of the path ?

A. 59.5 m2

B. 54 m2

C. 78.54 m2

D. 34 m2

Answer : C. 78.54 m2


Explanation:

    Area of path horizontal = 20 * 192.5
    = 3850 dm2
    Area of path vertical = 20 * 125
    = 2500 dm2
    Since center path is covered twice so total area,
    = (3850 + 2500) - (20 * 20)
    = 5950 dm2
    Total cost = 1.32 * 59.5 m2
    = 78.54 m2


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