# Which of the Following Are in Arithmetic Progression 5, 9, 12, 18 - Mathematics

Sum

Which of the following are in arithmetic progression

5, 9, 12, 18

#### Solution

5, 9, 12, 18

d_1 = 9 - 5 = 4

d_2 = 12 - 9 = 3

Since d_1 != d_2 the given sequence is not in arithematic progression

Concept: Arithmetic Progression - Finding Their General Term
Is there an error in this question or solution?

#### APPEARS IN

Selina Concise Maths Class 10 ICSE
Chapter 10 Arithmetic Progression
Exercise 10 (A) | Q 1.3 | Page 137