 
 <translate> Nadine has 20 / 2 = 10 red pebbles. Thus, she has 20 + 10 = 30 pebbles. So the answer is 30. <ibo> Nadine nwere 20 / 2 = 10 okwute uhie. N'ihi ya, o nwere 20 + 10 = 30 okwute. Ya mere azịza ya bụ 30. 