Question

What is the value of a3 in the sequence? 5, 10, 20, 40, 80...

Answer 1

`a_(3)` = 20

Explanation:

The first term in the sequence = 5

the second term = 10

the third term = 20

the fourth term = 40 and the fifth term = 80

In general the terms in the sequence can be denoted by
`a_(n)`

where n represents the position of the term in the sequence

`a_(1)` denotes the first term

`a_(2)` denotes the second term

`a_(3)` denotes the third term and so on

Here
`a_(3)` = 20

Answer 2

Answer: 20

Explanation:

Given the sequence {5, 10, 20, 40, 80, ... }

the first term (a₁) is 5

the second term (a₂) is 10

the third term (a₃) is 20

the fourth term (a₄) is 40

the fifth term (a₅) is 80