Question

if the breadth of rectangle in one third of it's length and perimeter is 80 cm,find the length and breadth of rectangle​

Answer 1

Length＝x
Breadth＝1/3x
(x＋1/3x)×2＝80
4/3x×2＝80
8/3x＝80
x＝30
Length＝30
Breadth＝1/3×30＝10

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