In following number series, two terms have been put within brackets. Choose the appropriate option
Choose correct alternative that will same pattern and fill in the blank spaces. 7, 6, 10 ,27, 104, __
Option:
A. 520
B. 420
C. 515
D. 525
Answer: C . 515
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Justification:
Here,
7 * 1 - 1 = 6
6 * 2 - 2 = 10
10 * 3 - 3 = 27
27 * 4 - 4 = 104
So 104 * 5 - 5 = 515
