Question

how to solve it ??? 120,80,40,45,?,5

Answer 1

you can see your answer

Answer 2

Answer:

The complete series is 120, 80, 40, 45, 40, 5

Step-by-step explanation:

Let us consider the series 120, 80, 40, 45, ?, 5 in two parts

Part one of series is  120, 80, 40  and

Part of series is 45, ?, 5

Considering part 1 of series,

The first number in the series is the sum of the other two numbers in the series , that is ,

120 = 80 + 40

So, similarly for the next part of series

45 = ? + 5

? = 45 - 5

? = 40

Hence,

The missing number in series is 40

The complete series is 120, 80, 40, 45, 40, 5