Scholarship Exam Preparation App
Class 5 - (Intelligence Test )
Number Order - Number pattern
Which is the next number in the following series of numbers? 10, 14, 23, 39, ?",
a :
60
b :
64
c :
55
d :
70
Explanation :
Check the differences: 10 + 4 (2²) = 14, 14 + 9 (3²) = 23, 23 + 16 (4²) = 39. The differences follow the sequence of perfect square numbers. Therefore, 39 + 25 (5²) = 64.