Question

Define the type of sequence below.

7, 14, 28, 56, 112, ...


A. neither arithmetic nor geometric
B. arithmetic
C. both arithmetic and geometric
D. geometric

Answer 1

answer is D. geometric

Explanation:

7*2=14*2=28*2=56*2=112

Answer 2

Geometric

Explanation:

7, 14, 28, 56, 112, ...

To check what type of sequence we compare two consecutive terms

14 divide by 7 is 2

28 divide by 14 is 2

56 divide by 28 is 2

112 divide by 56 is 2

the common ratio of two consecutive number is 2

we have common ratio so the sequence is Geometric