The length of a stick is 9 m 2 cm long. Kimberly cut the stick into 3 pieces. The length of the first piece of the stick is 62 cm. The length of the second piece of the stick is 3 m shorter than the third piece. What is the length of the third piece of stick?
1 m = 100 cm

Difference in the length between the second and the third piece
= 3 m
= 3 x 100
= 300 cm

Length of a stick
= 9 m 2 cm
= 9 x 100 + 2
= 902 cm

Length of the first piece = 62 cm
Length of the second piece = 1 u
Length of the third piece = 1 u + 300 cm

1 u + 1 u + 300 + 62 = 902
2 u + 362 = 902
2 u = 902 - 362 = 540
1 u = 540 ÷ 2 = 270 

Length of the third piece of stick
= 1 u + 300
= 270 + 300
= 570 cm

Answer(s): 570 cm