Question 4:
It is given that -7, h, k, 20,… are the first four terms of an arithmetic progression. Find the value of h and of k.
Solution:

It is given that -7, h, k, 20,… are the first four terms of an arithmetic progression. Find the value of h and of k.
Solution:

Question 5:
51, 58, 65,... 191 are the first n terms of an arithmetic progression. Find the value of n.
Solution:

51, 58, 65,... 191 are the first n terms of an arithmetic progression. Find the value of n.
Solution:

Question 6:
Find the number of the multiples of 8 between 100 and 300.
Solution:

Find the number of the multiples of 8 between 100 and 300.
Solution:
