Question

Find the wrong number in the given series
$480,480,240,80,20,5$

• A. $240$
• B. $80$
• C. $20$
• D. $5$

Answer 1

The correct option is D $5$

In the given series, the quotient when 1st term is

divided by the 2nd term, increases by $1$ and so on.
$\frac{480}{480}=1$ $\frac{480}{240}=2$
$\frac{240}{80}=3$ $\frac{80}{20}=4$
Hence, option 'D' is correct.