Number Series Ques 5

Question-

What will come in place of the question mark (?)

$9 \quad 5 \quad 6 \quad 10.5 \quad 23 \quad$ ?

(1) 85

(2) 60

(3) 78

(4) 49

(5) 97

Show Answer

Correct Answer: (2)

Solution: (2)

The pattern is:

$9 \times 0.5+0.5=4.5+0.5=5$

$5 \times 1+1=5+1=6$

$6 \times 1.5+1.5=9+1.5=10.5$

$10.5 \times 2+2=21+2=23$

$23 \times 2.5+2.5=57.5+2.5$ $=60$