Question

5,6,15,40 ___ series​

Answer 1

Answer:

25

Step-by-step explanation:

Answer 2

Answer:

89

Step-by-step explanation:

In series 5,6,15,40,__

The difference between 6 and 5= 6-5= (1)²

The difference between 15 and 6= 15-6=(3)²

The difference between 40 and 15 =40-15=(5)²

Therefore,

The difference between the number and 40 should be (7)²

So, 40+(7)²=89