The number of toys manufactured by a machine in 2018 was 25,000, which increased by 20% in 2019. In 2020, the production was hindered by a strike and it fell by 15%. How many total toys were manufactured in three years by the machine?
- A80000
- B89500
- C25500
- D80500
Solution & Step-by-step Explanation
Let's find the production for each individual year:
Production in 2018:
Production
2018
=25,000
Production in 2019 (increased by 20%):
Production
2019
=25,000×(1+
100
20
)=25,000×1.2=30,000
Production in 2020 (decreased by 15% from 2019):
Production
2020
=30,000×(1−
100
15
)=30,000×0.85=25,500
Total toys manufactured in all three years:
Total=25,000+30,000+25,500=80,500
Production in 2018:
Production
2018
=25,000
Production in 2019 (increased by 20%):
Production
2019
=25,000×(1+
100
20
)=25,000×1.2=30,000
Production in 2020 (decreased by 15% from 2019):
Production
2020
=30,000×(1−
100
15
)=30,000×0.85=25,500
Total toys manufactured in all three years:
Total=25,000+30,000+25,500=80,500