The length of a rectangle is 6m larger than three times of its breadth. If its perimeter is 148m. Find its length and breadth.
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Answer:
let the breadth be x cm
length be 3x+6 cm
perimeter = 2(l+b)
148 = 2(x+3x+6)
148/2 = 4x+6
74 = 4x+6
74-6 = 4x
68 = 4x
x = 68/4
x = 17
So, length = 17
breadth = 3x = 3 × 17 = 51
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