Question

an arithmetic series consists of consecutive integers that are multiples of 4. What is the sum of the first nine terms of this sequence if the first term is 0?
a. 162
b. 160
c. 144
d. 198

Answer 1

Answer:

c. 144

Step-by-step explanation:

The first term (a) is = 0

All terms are multipls of 4, that means we get arithmetic series as follows:-

0, 4, 8, 12......

here common difference (d) = 4

therefore we have,

(a)= 0

(d)= 4

(n)= 9

using the formula,

Sn= n/2{a+(n-1)d} by putting values and solving equation we get,

Sn= 144

Answer 2

Answer:-

C 144.

Solution:-

Attachment!!