a $+100$ micro coulomb is at the origin, a $-50$ microcoulomb is $2$ meter to the east away from it and a $+200$ microcoulomb is $4$ meter to the west away from the $+100$ microcoulomb.

$1-$ sketch the digram of the charges

$2-$find the net electric froce on the $+100$ microcoulomb

$3-$find the electric force on the $+200$ microcoloimb