Data Interpretation – 1

Data Interpretation

 

From January to July 2022, the national industrial power generation above designated size was 4.77 trillion kWh, a year-on-year increase of 1.4%, and the growth rate was 0.7 percentage points faster than the first half of the year. In July, the national power generation was 805.9 billion kWh, a year-on-year increase of 4.5%, and the growth rate was 3.0 percentage points faster than the previous month. In terms of varieties, thermal power turned from decline to growth in July, with a year-on-year increase of 5.3%; due to the dry water, hydropower increased by 2.4% year-on-year, and the growth rate slowed down by 26.6 percentage points from the previous month; wind power increased by 5.7% year-on-year, and the growth rate slowed down by 11.0 percentage points from the previous month; nuclear power decreased by 3.3% year-on-year, and the decline narrowed by 5.7 percentage points from the previous month; solar power generation increased by 13.0% year-on-year, and the growth rate was 3.1 percentage points faster than the previous month.

From January to July 2022, the total electricity consumption of the whole society was 4930.3 billion kWh, a year-on-year increase of 3.4%. By industry, the electricity consumption of the primary industry was 63.4 billion kWh, an increase of 11.1% year-on-year; the electricity consumption of the secondary industry was 3255.2 billion kWh, an increase of 1.1% year-on-year; the electricity consumption of the tertiary industry was 853.1 billion kWh, an increase of 4.6% year-on-year; the electricity consumption of urban and rural residents was 758.6 billion kWh, an increase of 12.5% ​​year-on-year. In July, the total electricity consumption of the whole society was 832.4 billion kWh, an increase of 6.3% year-on-year. By industry, the electricity consumption of the primary industry was 12.1 billion kWh, an increase of 14.3% year-on-year; the electricity consumption of the secondary industry was 513.2 billion kWh, a decrease of 0.1% year-on-year; the electricity consumption of the tertiary industry was 159.1 billion kWh, an increase of 11.5% year-on-year; the electricity consumption of urban and rural residents was 148 billion kWh, an increase of 26.8% year-on-year.

1. In July 2021, how many billion kWh of power generation was generated nationwide?

A.6570

B.6920

C.7712

D.7800

Correct Answer: C

NOTES:

Sort out the material structure. Soon we can lock in that in July, the national power generation was 805.9 billion kWh, a year-on-year increase of 4.5%. Through the growth rate formula

The national power generation in July 2021 was 8059/(1+4.5%)

The question now is how to deal with this formula.

By observing the options, the gap is quite large. You can use direct division.

8059/(1+4.5%)=8059÷1.045=8059÷1045=direct division operation=76+, you don’t need to calculate all of them, just calculate the first two numbers and you can directly lock the answer

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2. From January to July 2022, how much higher is the national urban and rural residents’ electricity consumption than from January to July 2021?

A. 67.2 billion kWh

B. 84.3 billion kWh

C. 92.5 billion kWh

D. 102 billion kWh

Correct Answer: B

NOTES:

Through the structural reading method, the electricity consumption of urban and rural residents was 758.6 billion kWh, an increase of 12.5% ​​year-on-year

7586-7586/(1+12.5%)

Through the special fraction method, 12.5%=1/8 is substituted into the calculation. The special fraction in this question is as straightforward as it can be.

7586-7586/(1+12.5%)=7586/9=direct division operation=84+

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3. In July 2021, the proportion of electricity consumption in the tertiary industry in the total electricity consumption of the society was approximately:

A. 3.3% higher

B. 3.8% lower

C. 9.8% higher

D. 10.3% lower

Correct Answer: A

NOTES:

In July 2021, the electricity consumption of the tertiary industry was 1597/(1+11.5%), urban and rural residents 1480/(1+26.8%), and the telephone consumption of the whole society was 8324/(1+6.3%). The observation options are very different, so let’s calculate roughly
1597/(1+11.5%)/8324/(1+6.3%)-1480/(1+26.8%)/8324/(1+6.3%)=
Substitute 11.5%=1/9, 26.8%=1/4, 6.3%=1/20 into it = (1450-1150)/8000=3/80=about 3.3

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