Q13: The perimeter of a rectangle

2018 Test A Math · Question 13 of 57

The perimeter of a rectangle is 510 centimeters. The ratio of the length to the width is 3:2. What are the dimensions of this rectangle?

  • A150 cm by 105 cm
  • B153 cm by 102 cm
  • C158 cm by 97 cm
  • D165 cm by 90 cm
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Correct answer: B

Let the width and the length.

Since 2 times width + 2 times length = perimeter, we get

cm and cm