# math

posted by
**Luca** on
.

A and B these 2 companies are fixing a road,A fixes 62% of the road,which is 360 meters more than B fixed.How long is this road?

Let X be the road length.

a is fixed by company A.

b is fixed by company B.

a + b = x

a - b = 360

a = 0.62 x

2a = x + 360 (from adding the first two equations)

1.24 x = x + 360

0.24 x - 360

x = 360/0.24 = 1500 m