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Q.

The perimeter of a rectangular field is 250 m. If its length is 50 m, find it’s area.

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a

3700 m2

b

3750 m2

c

4570 m2

d

4500 m2

answer is B.

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Detailed Solution

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Given, perimeter = 250 m

length = 50 m 

Perimeter =2(l + b)

250 = 2(50 + b)

2502= 50 + b

b =125 - 50 = 75 m

Area = l x b = 50 x 75 = 3750 m2

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