The line segment PQ has two point X and Y lying on it as shown :
The length of PQ is 30 cm
If the ratio between PX and YQ is 4 : 5 and between XY and YQ is 1 : 5 , Then find the length of XY.
3 cm
Given - PX : YQ = 4 : 5 and XY : YQ = 1 : 5
∴ PX : XY : YQ = 4 : 1 : 5
Let PX be 4x, XY be x and YQ be 5x
Length of PQ = 4x + x + 5x = 10x = 30 cm
⇒ x = 3010 = 3 cm
Length of XY = 3 cm