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In "Number Series" question, a number series is given with one term missing. Choose the correct alternative that will same pattern and fill in the blank spaces

In following question, a number series is given with one term missing. Choose the correct alternative that will same pattern and fill in the blank spaces.

24, 60, 120, 210,

Option:
A. 300
B. 336
C. 420
D. 525
Answer: B . 336

Justification:

The pattern is+ 36, + 60, + 90, ....
i.e., + [ 6 * (6 + 0) ], + [ 6 * (6 + 4) ], + [ 6 * (6 + 9) ],.....
.'. Missng number = 210 + [ 6 * (6 + 15)]  = 210 + 126 = 336.


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