In a school, the number of participants in the 2018 Science Quiz Bowl was 150. There were 20 more than twice the number of participants in 2019 as there were in 2018. In 2020, the number of participants was 40 less than half the number of participants in 2019. How many more participants were there in 2019 than in 2020?
Дар як мактаб, шумораи иштирокчиён дар Quiz Bowl илмии соли 2018 150 нафар буд. Дар соли 2019 шумораи иштирокчиён 20 нафар бештар аз ду баробари шумораи иштирокчиён дар соли 2018 буд. Дар соли 2020, шумораи иштирокчиён 40 нафар камтар аз нисфи шумораи иштирокчиён дар соли 2019 буд. Дар соли 2019 чанд нафар иштирокчиён бештар буданд, нисбат ба соли 2020?
How many participants were there in 2018? ** Twice the number of participants in 2018 is 150 participants x 2 = <<150*2=300>>300 participants.
How many participants were there in 2019? ** The number of participants in 2019 was 300 participants + 20 participants = <<300+20=320>>320 participants.
How many participants were there in 2019? ** Half the number of participants in 2019 is 320 participants /2 = <<320/2=160>>160 participants.
How many participants were there in 2020? ** The number of participants in 2020 was 160 participants - 40 participants = <<160-40=120>>120 participants.
How many more participants were there in 2019 than in 2020? ** There were 320 participants - 120 participants = <<320-120=200>>200 more participants in 2019 than in 2020.
#### 200
Соли 2018 чанд иштирокдор буд? ** Дубораи шумораи иштирокдорон дар соли 2018 150 иштирокдор x 2 = <<150*2=300>>300 иштирокдор.
Соли 2019 чанд иштирокдор буд? ** Шумораи иштирокдорон дар соли 2019 300 иштирокдор + 20 иштирокдор = <<300+20=320>>320 иштирокдор.
Соли 2019 чанд иштирокдор буд? ** Ним шумораи иштирокдорон дар соли 2019 320 иштирокдор /2 = <<320/2=160>>160 иштирокдор.
Соли 2020 чанд иштирокдор буд? ** Шумораи иштирокдорон дар соли 2020 160 иштирокдор - 40 иштирокдор = <<160-40=120>>120 иштирокдор.
Соли 2019 чанд иштирокдор бештар буд, нисбат ба соли 2020? ** 320 иштирокдор - 120 иштирокдор = <<320-120=200>>200 иштирокдори бештар дар соли 2019 нисбат ба соли 2020.
#### 200