Solution
Pattern is:
$${1}\times{2} = 2$$
$${2}\times{3} = 6$$
$${6}\times{4} = 24$$
$${24}\times{5} = 120$$
$${120}\times{6} = 720$$
Therefore the required number is $$720$$.
Create a FREE account and get:
- Download RRB Study Material PDF
- 45+ RRB previous papers with solutions PDF
- 300+ Online RRB Tests for Free
