Table gives the installed electricity capacity (gigawatts) from solar, wind and coal, plus population (millions), for states X and Y in 2011 and 2021.
| State | Year | Solar | Wind | Coal | Population (million) |
|---|---|---|---|---|---|
| X | 2011 | 20 | 10 | 40 | 50 |
| X | 2021 | 28 | 15 | 42 | 60 |
| Y | 2011 | 15 | 8 | 50 | 60 |
| Y | 2021 | 20 | 10 | 55 | 68 |
What was the per capita availability of electricity in State X in the year 2021?
AAbout 1.21 kW
BAbout 1.41 kW ✓ Correct
CAbout 1.25 kW
DAbout 1.62 kW
Correct answer: (B) About 1.41 kW
Explanation
The per capita availability is about 1.41 kW, so the answer is about 1.41 kW.
In 2021 State X had solar 28, wind 15 and coal 42.
So its total installed capacity is 85 gigawatts.
Its population in 2021 was 60 million.
Per capita availability is the total capacity divided by the population.
So it is 85 gigawatts over 60 million, which is about 1.41 kW.
So the answer is about 1.41 kW.
Want more like this? Create a free account to practise a full test, track your progress, and get spaced-repetition review.
Practise on Mcqkart →🎓 Book an expert →