 <translate> Twice the number of participants in 2018 is 150 participants x 2 = 300 participants. The number of participants in 2019 was 300 participants + 20 participants = 320 participants. Half the number of participants in 2019 is 320 participants / 2 = 160 participants. The number of participants in 2020 was 160 participants - 40 participants = 120 participants. There were 320 participants - 120 participants = 200 more participants in 2019 than in 2020. So the final answer is 200. <yor> Èèmejì iye àwọn olùkópa ní ọdún 2018 jẹ àwọn olùkópa 150 x 2 = àwọn olùkópa 300. Nọmba awọn olukopa ni ọdun 2019 jẹ awọn olukopa 300 + awọn olukopa 20 = awọn olukopa 320. Idaji iye awọn olukopa ni 2019 jẹ awọn olukopa 320 / 2 = awọn olukopa 160. Nọmba awọn olukopa ni ọdun 2020 jẹ awọn olukopa 160 - awọn olukopa 40 = awọn olukopa 120. Awọn olukopa 320 wa - awọn olukopa 120 = awọn olukopa 200 diẹ sii ni ọdun 2019 ju ni ọdun 2020. Nítorí náà ìdáhùn tí ó kẹ́yìn ni 200. 