# Which of the following sequences is not an arithmetic sequence?

A:1,2,3,4,5 B:35,41,47,53,60 C:2,4,8,16,32 D:42,35,28,21,14

Relevance

B is not an arithmetic sequence.

35+6 = 41

41+6 = 47

47+6 = 53

53+7 = 60

hence the last one is off the sequence.

B.

The numbers here all follow a pattern except the last number.

As such, it cannot qualify as a sequence.

A and D are sequences which can be classified as Arithmetic Progressions. Here the difference between consecutive elements remains constant.

C is a sequence which can be classified as Geometric Progression. Here the ratio of consecutive elements remains constant in a sequence.

• 4 years ago

sure, both sequences are. The definition is: "An mathematics sequence is a chain in which each and every time period differs from the previous one by a similar fixed huge style." contained in the first case, the fixed huge style is -5. contained in the 2d case, the large style is 3.

C is a geometric sequence. This sequence is formed by multiplying the previous number by 2. The other sequences are formed by adding numbers.

A is sequential by ones

B increases by 6 everytime except the last

C each number doubles

D Each number is a decreasing multiple of 7

B and C are not arithmatic. In B, last two terms difference is 7 whereas common difference of other terms is only 6. And C is geometric progression.

well there is a linear pattern for A, C, D.

But not for B. At least no apparent pattern from the selected range of numbers u provided.