Arithmetic Sequence

What is the common difference of the given arithmetic sequence:

–2, 5, 12, 19, 26, . . . ?

• -2

• 3

• 5

• 7

Which of the following sequence is an arithmetic sequence?

• 5, 12, 21, 32, 45, . . .

• 3, 6, 12, 24, 48, . . .

• –8, –5, –2, 1, 4, . . .

• 12, 7, 11, 6, 10, 5, . . .

Which of the following sequence is NOT an arithmetic?

• –4, 5, 18, 35, 56, 81, . . .

• 25, 13, 1, –11, –23, . . .

• 9, 15, 21, 27, 33, . . .

• –12, –4, 4, 12, 20, 28, . . .  

What is the next term in the arithmetic sequence -11, -15, -19, . . .?

• -22

• -23

• -24

• -25

The 4th term of an arithmetic progression is 45 and its 10th term is 123, what is the 12th term?

• 149

• 136

• 148

• 140

What is an arithmetic mean between 9 and 78?

• 43.5

• 44

• 48

• 43

Insert 4 arithmetic means between 32 and 97.

• 44, 57, 70, 83

• 45, 58, 71, 84

• 45, 58, 70, 83

• 44, 57, 71, 84

How many multiples of 6 are there from 8 to 300?

• 48

• 49

• 50

• 51