Scholarship Exam Preparation App
Class 7 - (Intelligence Test )
Series - Numbers
16, 33, 65, 131, ...?..., 523
a :
521
b :
613
c :
721
d :
261
e :
324
Explanation :
16 * 2 + 1 = 33
33 * 2 - 1 = 65
65 * 2 + 1 = 131
131 * 2 - 1 = 261
Check: 261 * 2 + 1 = 523
33 * 2 - 1 = 65
65 * 2 + 1 = 131
131 * 2 - 1 = 261
Check: 261 * 2 + 1 = 523