A rectangular grassy plot 110 m. by 65 m has a gravel path 2.5 m wide all round it on the inside. Find the cost of gravelling the path at 50 paise per sq. metre
Options:	A) s425	B) s780	C) s880	D) s480	E) s980
area of the plot=110m*65m=7150sq.m   area of plot excluding gravel110 *65= 
<gadget id="calculator">110 *65</gadget>
<output>7_150</output>
7150sq.m   area of plot excluding gravel=105m*60m=6300sq.m   area of gravel 105 *60= 
<gadget id="calculator">105 *60</gadget>
<output>6_300</output>
6300sq.m   area of gravel=7150sq.m-6300sq.m =850sq.m   cost of building it = 850sq.m*50   = 42500p   in Rs =42500/100= 
<gadget id="calculator">42500/100</gadget>
<output>425</output>
Rs425   s425NSWER:s425
<result>A</result>
A rectangular grassy plot 110 m. by 65 m has a gravel path 2.5 m wide all round it on the inside. Find the cost of gravelling the path at 50 paise per sq. metre