Question

the 20th term of multiple of 3 is​

Answer 1

The first 20 multiples of 3 are 3, 6, 9, 12,......, 60.

$\small \bold{Hence, \: the \: average \: of \: those \: multiples </em></strong><strong><em>}$

$\huge \frac{13 \cancel{0}}{2 \cancel{0}} = \frac{13}{2} = 31.5$