Question

The length of a rectangle is 4m less than 5 times it's breadth. Find the length & breadth of rectangle. If it's perimeter is 40 m

Answer 1

b=x

l=5x-4

p=40m

formula= 2(l+b)

40= 2 (5x + x -4)

40= 2 (6x -4)

40= 12x -8

40+8 = 12x

48 = 12x

x = 48/12 = 4

breadth = 4m

length = 4*5-4 =16m

hope this helps

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