Question

The following table shows CFC emissions (in million metric tons) from various sectors for an industry for a period of 5 years. Based on the table answer the question given below.

Sector
Year	Cement	Fertilizer	Foam	Pesticides
2015	200	500	80	100
2016	300	600	90	110
2017	320	650	100	120
2018	400	700	150	150
2019	450	800	200	180

The contribution of CFC emission from the fertilizer sector, in comparison to the total CFC emissions from all the sectors, was the least in which year?

1. 2017
2. 2016
3. 2019
4. 2015

Answer 1

Correct Answer - Option 3 : 2019

Calculation:

The total CFC emissions from all the sectors in 2015 = (200 + 500 + 80 + 100)

⇒ 880

The total CFC emissions from all the sectors in 2016 = (300 + 600 + 90 + 110)

⇒ 1100

The total CFC emissions from all the sectors in 2017 = (320 + 650 + 100 + 120)

⇒ 1190

The total CFC emissions from all the sectors in 2018 = (400 + 700 + 150 + 150)

⇒ 1400

The total CFC emissions from all the sectors in 2019 = (450 + 800 + 200 + 180)

⇒ 1630

Now,

The contribution of CFC emission from the fertilizer sector, in comparison to the total CFC emissions from all the sectors in 2015 = (500/880 × 100)

⇒ 56.81%

The contribution of CFC emission from the fertilizer sector, in comparison to the total CFC emissions from all the sectors in 2016 = (600/1100 × 100)

⇒ 54.54%

The contribution of CFC emission from the fertilizer sector, in comparison to the total CFC emissions from all the sectors in 2017 = (650/1190 × 100)

⇒ 54.62%

The contribution of CFC emission from the fertilizer sector, in comparison to the total CFC emissions from all the sectors in 2018 = (700/1400 × 100)

⇒ 50%

The contribution of CFC emission from the fertilizer sector, in comparison to the total CFC emissions from all the sectors in 2019 = (800/1630 × 100)

⇒ 49.07%

∴ The contribution of CFC emission from the fertilizer sector, in comparison to the total CFC emissions from all the sectors, was least in 2019