Question

What is the 2nd difference for 3,13,27,45,67...?
a) 4
b) 8
c) 12
d) 16

Answer 1

The second difference is 4.

Step-by-step explanation:

To find the second difference, we need to calculate the difference between consecutive differences.

First, let's calculate the differences between the terms:

1. 13 - 3 = 10
2. 27 - 13 = 14
3. 45 - 27 = 18
4. 67 - 45 = 22

Next, calculate the differences between these differences:

1. 14 - 10 = 4
2. 18 - 14 = 4
3. 22 - 18 = 4

Since the differences between the differences are all the same (4), the second difference is 4.