If the breadth and perimeter of a rectangle are 12cm and 50 cm respectively, then its length will be .

13cm

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15cm

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20cm

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Solution

The correct option is A 13cm
Perimeter of a rectangle = 2(length + breadth)
50 = 2(length + 12)
(length + 12) = 25 cm
length = 25 - 12 = 13cm
Hence length of the rectangle = 13cm.

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