Question

a piece of wire 3/4m long was cut into three parts .the first part was 3/20m long .while the length of the second piece was 3/5 of the first. how long was the third piece.
​

Answer 1

Answer:

3/4= total length

3/20=1st piece

3/20*5/3=2nd piece

15/60 = 1/4

thus, 3rd piece =(3/4)-(3/20+1/4)

= 3/4- 8/20= (15-8)/20 =7/20 m