Multiple choice

Anaya wants to cut a small rectangular piece of paper out of a big rectangular chart paper such that the length and breadth of piece of paper are exactly 1/3rd of that of chart paper. What is the ratio of areas of big chart paper to that of small piece of paper?

  1. 1 : 9

  2. 3 : 1

  3. 9 : 1

  4. 1 : 3

  5. 19 : 1
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Length of big chart paper = L Breadth of big chart paper = B Area of big chart paper = L x B = LB sq. c m Length of small piece of paper = L/3 Breadth of of small piece of paper = B/3 Area of small piece of paper = L/3 x B/3 = LB/9 sq. cm Ratio = Area of big chart paper / Area of small piece of paper = LB/(LB/9) = 9 : 1

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