Question

which number comes as the last number in the sequence 4,12,28,60, (....)?

Answer 1

Answer:

124

Tₙ = 2 * Tₙ₋₁  + 4

Step-by-step explanation:

4,12,28,60, (....)?

4

4 * 2 + 4  = 8 + 4 = 12

12 * 2 + 4 = 24 + 4 = 28

28 * 2 + 4 = 56 + 4 = 60

60 * 2 + 4 = 120 + 4 = 124

Rule Here is

nth number = (n-1)th number * 2  + 4

Tₙ = 2 * Tₙ₋₁  + 4