Number Series Ques 35

Question-

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

$2 \quad 6 \quad 12 \quad 21 \quad 34.5 \quad$ ?

(1) 54.75

(2) 54.50

(3) 45.75

(4) 46

(5) 48

Show Answer

Correct Answer: (1)

Solution: (1)

The pattern is :

$2+4=6$

$6+6(=4 \times 1.5)=12$

$12+9(=6 \times 1.5)=21$

$21+13.5(=9 \times 1.5)=34.5$

$34.5+20.25(=13.5 \times 1.5)$ $=54.75$