A) 7.5 m
B) 8.5 m
C) 6.5 m
D) 9.5 m
Correct Answer: A
Solution :
Breadth be\[b\] Then Area\[=8b\,\,{{m}^{2}}\] & Cost\[=Rs.\,\,510\] \[\therefore \]Area\[=\frac{5100}{85}=60\,\,{{m}^{2}}\] \[=8\times b=60\,\,{{m}^{2}}\] \[\therefore \]\[b=\frac{60}{8}=\frac{15}{2}m=7.5\,\,m\]You need to login to perform this action.
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