Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
In an arithmetic progression, the 4th term is 18 and the 9th term is 33. What is the common difference d? a)
d
=
5
d = 5
d
=
5
b)
d
=
−
3
d = -3
d
=
−
3
c)
d
=
3
d = 3
d
=
3
d)
d
=
3.75
d = 3.75
d
=
3.75
Browse the problem library