Question

A board with 86cm in length must be cut so that one piece is 20cm longer than the other piece .find the length of each piece​

Answer 1

33cm ; 53 cm

Explanation:

Let the length of one piece = x cm

Length of the other piece = (x + 20) cm

x + ( x+ 20) = 86 cm

x + x + 20 = 86

2x + 20 = 86

2x = 86- 20

2x = 66

x = 66/2

x = 33 cm

Length of the longer piece = x + 20 = 33 +20 = 53 cm