9xThe length and the breadth of a rectangular park are in the ratio 8 : 5. A path 1.5 m wide, running all
around the outside of the park has an area of 594 m . Find the dimensions of the park,
8x
1-5 m
Answers
Answer:
Let the length of the park rectangle ABCD be 8x m
Let the breadth of the park rectangle ABCD be 5x m
Area of rectangle ABCD=(8x×5x)m
=40x
2
m
Length of the park including path PQRS
=8x+2(width of path)
=8x+2(1.5)
=8x+3m
Breadth of the park including path PQRS
=5x+2(width of path)
=5x+2(1.5)
=5x+3m
Area of the park including path PQRS
=(8x+3)(5x+3)
=(40x
2
+39x+9)m
2
Given,
Area of the path=594m
2
Area of PQRS-Area of ABCD=594
=>40x
2
+39x+9−40x
2
=594
=>39x=594−9
=>39x=585
=>x=
39
585
=>x=15
Length of the park=8x
=8×15
=120m
Breadth of the park=5x
=5×15
=75m