Number Series Ques 199
Question-
What will come in place of the question mark (?)
$5 \quad ? \quad 38 \quad 105 \quad 299 \quad 872 \quad 2580$
(1) 12
(2) 14
(3) 16
(4) 18
(5) 20
Show Answer
Correct Answer: (2)
Solution: (2)
The pattern is :
$5 \times 3-1^{2}=15-1=14$
$14 \times 3-2^{2}=42-4=38$
$38 \times 3-3^{2}=114-9=105$
$105 \times 3-4^{2}=315-16=299$
$299 \times 3-5^{2}=897-25=872$
BETA
