Question

- Two cross-roads each of width 3 m run parallel to the sides of a square field of side 40 m each. Find
the area of cross-roads and also the cost of paving the cross-roads with stones at the rate of 75 per
square metre
Find the of the shaded portions in the following figures​

Answer 1

Answer:

width =5 m

Step-by-step explanation:

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

Answer 2

Hope it helps you!!!!!!!!!!!!!!!!!!!