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Question

A length of a rectangle   is 100 cm and its breadth is  75 cm  . The ratio of length of the rod to its perimeter 


  1. 4 : 1

  2. 3 :1 

  3. 1:3

  4. 1 : 4


Solution

The correct option is C

1:3


The length of the rectangle = 100 cm

The breadth of the rectangle = 50 cm

Hence Perimeter = 2( l + b)

                            = 2( 100 + 50)

                            = 2(150)  = 300 cm 

Hence ratio of the length of the rod to Perimeter of the rectangle = Length of the rodPerimeter of the rectangle

                                                                                                       = 100300

                                                                                                        =13

Ratio of Length to the perimeter of the rectangle = 1 : 3

         

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