A) Rs 456
B) Rs 458
C) Rs 558
D) Rs 568
E) None of these
Correct Answer: C
Solution :
Explanation Area to be plastered \[=\,\,\,[2(\ell +b)\times h]+(\ell \times b)\] \[= \{[2\left( 25 + 12 \right)\times 6] + (25\times 12)\}{{m}^{2}}= (444 +300){{m}^{2}}=744\,{{m}^{2}}\]\[=744\,{{m}^{2}}\] \[\therefore \,\,\,Cost of plastering\,\,=\,\,\left( 744\times \frac{75}{100} \right)\,\,=\,\,558.\]
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