Question

give this answer fast .

Answer 1

length of the rope=10m20cm=1020cm

A/Q
4x+6x+7x=1020
17x =1020
x =60



so the req lengths are
=4x=240cm
6x=360cm
7x=420cm

Answer 2

let the length of the three piece will be 4x,6x,7x
so 4x+6x+7x=1020cm
x=60cm
length of the three piece will be 240cm,360cm,420cm