<PRE><B>Question 388648</B>
let x = length of second piece
let y = length of first piece

y=(x +5)

(3/4)x =(3/5)Y = (3/5)(x +5)
 
LCD: 20

15x = 12(x+5)=12x +60

15x - 12x = 60

3x = 60

x=20 cm

ans: the length of the second piece is 20 cm</PRE>