Number Series Ques 16
Question-
What will come in place of the question mark (?)
$15 \quad 29 \quad 56 \quad 108 \quad 208 \quad 400 \quad$ ?
(1) 758
(2) 770
(3) 784
(4) 768
(5) 778
Show Answer
Correct Answer: (4)
Solution: (4)
The pattern is:
$15 \times 2-1=30-1=29$
$29 \times 2-2=58-2=56$
$56 \times 2-4(=2 \times 2)$ $=112-4=108$
$108 \times 2-8(=2 \times 4)$ $=216-8=208$
$208 \times 2-16(=2 \times 8)$ $=416-16=400$
$400 \times 2-32(=2 \times 16)$ $=800-32=768$
BETA
