In a maths class Riki divides 60 chalk sticks by half and adds fifteen. What answer does she show the Class?

In a maths class Riki divides 60 chalk sticks by half and adds fifteen

1.	In a maths class Riki divides 60 chalk sticks by half and adds fifteen. What answer does she show the Class?
A.	129 chalk sticks
B.	130 chalk sticks
C.	135 chalk sticks
D.	145 chalk sticks
Answer» D. 145 chalk sticks