7 A saree 5.5 m long and 1.25 m wide has a zari border2.5 cm broad along its length on either side. Along thewidth on one edge the border was 5 cmthe zari was 25 cm wide. Find the area of the zari.(Hint: Zari area along the length 2.5 x 550 x 2 sq. cmwide and on the other sideZari area along the width-(5(125-5)+ 25 (125-5) sq. cm.)

7 A saree 5.5 m long and 1.25 m wide has a zari border2.5 cm broad alo

1.	7 A saree 5.5 m long and 1.25 m wide has a zari border2.5 cm broad along its length on either side. Along thewidth on one edge the border was 5 cmthe zari was 25 cm wide. Find the area of the zari.(Hint: Zari area along the length 2.5 x 550 x 2 sq. cmwide and on the other sideZari area along the width-(5(125-5)+ 25 (125-5) sq. cm.)
Answer» Area of zari = Area of outer rectangle (or sari) - Area of rectangle without zariClearly, area of sari = length × breadth = 5.5 m × 1.25 m = 6.875 m2For area of rectangle without zari, we have length = 5.5 m - 0.3 m [Using 100 cm = 1 m]= 5.2 Similarly, its breadth = 1.25 m - (2.5 cm + 2.5 cm) = 1.25 m - 5 cm= 1.25 - 0.05 m [Again, using 100 cm = 1 m]= 1.2 mTherefore, area of sari without zari = length × breadth= 5.2 m × 1.2 m = 6.24 m2So, the area of zari = Area of outer rectangle (or sari) - Area of rectangle without zari= 6.875 m2- 6.24 m2= 0.635 m2Hence, the area of zari is 0.635 m2.