Question

complete the sequence 4,9,19,39,79,?

Answer 1

Answer:

159 is the next term.

Step-by-step explanation:

Firstly the difference= 9-4=5.

In second, the difference is 19-9=10.

In third, the difference is 39-19=20.

In fourth, the difference is 79-39=40.

We can notice that difference is doubled in every term than its preceding term.

So,

difference for next term=40×2=80.

next term=79+80=159.

Hence, the next term is 159.

If you find it helpful, please mark it as the Brainliest answer.

Answer 2

Answer:

159

Step-by-step explanation:

Difference between 4 and 9 is 5.

Next, the difference between 9 and 19 is 10, 19 and 39 is 20, 39 and 79 is 40.

This means the differences are getting doubled as the series is increasing.

Hence, the next difference will be 80.

79 + 80 = 159.

Hence, the next number in the series is 159.