Arithmetic Ability
Area

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Q.

A rectangular park 60 m long and 40 m wide has two concrete crossroads running in the middle of the park and rest of the park has been used as a lawn. If the area of the lawn is 2109 sq. m, then what is the width of the road?

View Answer

Correct choice: C

Explanation:

Area of the park = (60 x 40) = 2400m2 Area of the lawn = 2109m2 Area of the crossroads = (2400 - 2109) = 291m2 Let the width of the road be x metres. Then, 60x+40x−X2=291 x2−100x+291=0 (x - 97)(x - 3) = 0 x = 3.
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