Instead of walking along two adjacent sides of a rectangular field, a boy took a short cut along the diagonal of the field and saved a distance equal to half of the longer side. The ratio of shorter side of the rectangle to the longer side is :
Let A and B be the length and breadth respectively.
Diagonal of a rectangle (say C)(By Pythagoras theorem):::: C2=A2+B2--let this be (I)
Given,
C+0.5A=A + B
C=0.5A+B-let this be (II)
Puttin II in I
0.25A2+B2+AB=A2+B2
0.25A2+AB=A2
AB=A2-0.25A2
AB=0.75A2
AB/A2=0.75
B/A=3/4
THERFORE THE RATIO IS 3:4