Question

complete the series 400,394,388,382,376

Answer 1

$since \: the \: common \: difference \: is \: equal \: the \: these \: terms \: are \: in \: ap \\ a = 400 \\ d = 6 \\ so \: the \: serise \: continues \: to \: \\ 376 - 6 = 370 \\ 370 - 6 = 364 \\ 364 - 6 = 358 \\ 358 - 6 = 352 \\ ....... \\ ........ \\ ........and \: continues$

Answer 2

The series is:

400,394,388,382,376,370,364,358,352.........

There is a gap of 6 in every no.