Question 66
The numbers in the figure below have certain logic/pattern. Using that logic/pattern, find out the number that can be inserted in place of '?'.
Solution
The pattern here is as follows:
Each number is found by multiplying the previous number by 2 and then subtracting a consecutively increasing integer.
The number 4 is given.
4 × 2 − 1 = 7
7 × 2 − 2 = 12
12 × 2 − 3 = 21
21 × 2 − 4 = 38
Next Number: 38 × 2 − 5 = 76 − 5 = 71.
