A) 3m
B) 4m
C) 5m
D) 6m
Correct Answer: C
Solution :
Since the questions are of objective nature, the width of the park shall be given in the choice. If one of the choices be 5 meters, then it will satisfy the given condition. Shaded area\[=650\,{{m}^{2}}\] External area\[=40\times 35=1400\,{{m}^{2}}\] Internal area\[=(40-2\times 5)\,(35-2\times 5)\] \[=(30\times 25)\,{{m}^{2}}=750\,{{m}^{2}}\] \[\therefore \] Shaded are\[=\text{(}1400-750\text{)}\,{{m}^{2}}\] \[=650\,{{m}^{2}}\] Which is true. Hence, width of the walk is 5 m.You need to login to perform this action.
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