Number Series Ques 26

Question-

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

$19 \quad 10 \quad 11 \quad 18 \quad 38 \quad$ ?

(1) 97.5

(2) 110

(3) 115

(4) 124.5

(5) 99.5

Show Answer

Correct Answer: (1)

Solution: (1)

The pattern is :

$19 \times 0.5+0.5=9.5+0.5=10$

$10 \times 1+1=10+1=11$

$11 \times 1.5+1.5=16.5+1.5$ $=18$

$18 \times 2+2=36+2=38$

$38 \times 2.5+2.5=95+2.5$ $=97.5$