Question

question- two crossroad speech of with 5 metre run at right angle through the centre of rectangle park of length 70 width is equal to 45m find the area off road also find cost of constructing to the rate of of 100 m.​

Answer 1

$\bold{Answer}$

width =5 m

length of first parallel road 70 m

area of first road 70×5=350 sq.m

length of second road 45 m 

area of second road =45×5=225 sq.m

area of the common part of cross road with 5 m width that  lies at the 

center of the park 5×5 = 225 sq.m 

area of roads = area of first road +area of second cross road−common area

                                           =(350+225)−25=575−25=550sqm

cost of the construction per sq.m =Rs.105

total cost =550×105=Rs 57750

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