meritnation experts,

i have a doubt please clear the doubt the question is there down.

a saree 5.5m long and 1.25 m wide has a zari border 2.5 cm broad along its length on either side . along the width on one edge the borde was 5 cm wide on the other side the zari was 25 cm wide.find the area of the zari.                                                                                                                                                                                                                                                                                                        please help me with this answer

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The given conditions can be summed in a figure as shown below.

Area of zari = Area of outer rectangle (or sari) - Area of rectangle without zari

Clearly, area of sari = length × breadth = 5.5 m × 1.25 m =  6.875 m2

For area of rectangle without zari, we have

length = 5.5 m - (5 cm + 25 cm) = 5.5 m - 30 cm = 5.5 m - 0.3 m  [Using 100 cm = 1 m]

= 5.2 m

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 m

Therefore, area of sari without zari = length × breadth

= 5.2 m × 1.2 m = 6.24 m2

So, the area of zari = Area of outer rectangle (or sari) - Area of rectangle without zari

= 6.875 m2 - 6.24 m2 = 0.635 m2  

Hence, the area of zari is 0.635 m2.

Hope you get it!!

  • 9

see they have given the extra information just to confuse you so the answer is :

length of zari = 1.25m = 125cm

width of  zari = 2.5cm

formula for caluculating the area for a rectangle = l x b

                                                                                      = 125 x 2.5

                                                                                      = 312.5cm

  • 1
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