Question 618389
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Hi,
The ratio of the perimeter of a rectangle to its longest side is 10 : 3.
The perimeter is 40cm. What is the length{{{x}}} of the longest side?
  {{{10/3 = 40cm/x}}}  ||Cross Multiplying to solve
     10x = 120cm
       x = 120cm/10 = 12cm