What will come at the place of question mark ?
2, 3, 6, 15, ?, 123
A. 47
B. 42
C. 45
D. 50
Answer: Option B
Solution(By Examveda Team)
First term → 2
Second term → (2 *3 -3) = 3
Third term → (3 *3 -3) = 6
Fourth term → (6 *3 - 3) = 15
Fifth term → (15 *3 - 3) = 42
Sixth term → (42 *3 - 3) = 123
This Question Belongs to Competitive Reasoning >> Number Series Completion
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Comments ( 2 )
Related Questions on Number Series Completion
2*1.5=3
3*2=6
6*2.5=15
15*3=5
this also might be the anser
we will find out difference
3-2=1
6-3=3
15-6=9
so 42-15=27
this is like (1*3)(3*3)(9*3)