The area of a square is 625 sq cm. Find the ratio of the breadth and the length of a rectangle whose length is thrice the side of the square and breadth is 20 cm less than the side of the square.	Choose the correct choice from the following choices:  A) 5 : 12  B) 5 : 13  C) 2:9  D) 1:15  E) 1:5
Let the length and the breadth of the rectangle be l cm and b cm respectively. Let the side of the square be a cm.   a2 = 625   a = 25   L = 3a and b = a - 20   b : l = a - 20 : 3a = 5 : 75 = 1:15   Answer: 1:15
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The area of a square is 625 sq cm. Find the ratio of the breadth and the length of a rectangle whose length is thrice the side of the square and breadth is 20 cm less than the side of the square.