State $2014$ $2015$ $2016$ $2017$ $2018$ A $84$ $86$ $85$ $82$ $85$ B $168$ $164$ $162$ $163$ $145$ C $178$ $180$ $181$ $182$ $185$ D $86$ $79$ $84$ $76$ $74$
Coal Production Decline Analysis
The question asks to identify the number of years where the overall coal production fell compared to the previous year, based on the provided table for states A, B, C, and D from $2014$ to $2018$.
| State | $2014$ | $2015$ | $2016$ | $2017$ | $2018$ |
|---|---|---|---|---|---|
| A | $84$ | $86$ | $85$ | $82$ | $85$ |
| B | $168$ | $164$ | $162$ | $163$ | $145$ |
| C | $178$ | $180$ | $181$ | $182$ | $185$ |
| D | $86$ | $79$ | $84$ | $76$ | $74$ |
Calculating Total Annual Coal Production
To determine the overall production, we sum the production from all states for each year:
- Total Production ($2014$): $84 + 168 + 178 + 86 = 516$
- Total Production ($2015$): $86 + 164 + 180 + 79 = 509$
- Total Production ($2016$): $85 + 162 + 181 + 84 = 512$
- Total Production ($2017$): $82 + 163 + 182 + 76 = 503$
- Total Production ($2018$): $85 + 145 + 185 + 74 = 489$
Comparing Year-over-Year Production
Now, we compare the total production of each year with the preceding year to identify instances of decline:
- $2015$ vs $2014$: $509 - 516 = -7$. Production fell.
- $2016$ vs $2015$: $512 - 509 = +3$. Production increased.
- $2017$ vs $2016$: $503 - 512 = -9$. Production fell.
- $2018$ vs $2017$: $489 - 503 = -14$. Production fell.
The overall production of coal fell in the years $2015$, $2017$, and $2018$. This means the production fell in $3$ out of the $5$ years considered ($2015$, $2016$, $2017$, $2018$ are compared to their previous years).
Conclusion
The overall coal production fell in $3$ specific years when compared to the previous year.
Similar Questions
- Which State shows the lowest range in the data for production of coal in the given period?
- In which year has State C registered the highest percentage contribution to the total coal production for the year?
- For which State has the percentage contribution to the overall coal production NOT dropped even once during the $5\text{-year}$ period? (Percentage calculation rounded off to the nearest integer).
- In which state was the annual rainfall (in cm) for 2005 greater than the average annual rainfall (in cm) for all three years?
- Which state has the maximum percentage decrease in annual rainfall between the years 2000 and 2015?
- Which state has maximum percentage change in the production of grains between the year 2015 and 2018?
- The following table shows the number of misprints in various pages of a book.
Number of misprints (per page) 0 1 2 3 4 5 Number of pages 154 95 36 7 6 2
What is the total number of pages in the book and approximately what percentage of them are erroneous? - In which year did the production fall the most as compared to the previous year, in offshore production?
- What is the approximate percentage decline in offshore production in the year 2013-14?
- What is the total onshore production during all the years (in BCM)?
Important Questions from Tabulation
The table shows District-wise data of a number of primary school teachers posted in schools of a city.
Study the table and answer the question:
District
Male teachers
Female teachers
East
1650
2375
North
1075
2651
West
1280
1520
South
1170
1085
Central
690
859
What is the difference between the total number of male teachers in the districts East, North, West taken together and the total number of female teachers in the districts East and South?Table shows income (in Rs. ) received by 4 employees of a company during the month of December 2020 and all their income sources.
Source
Amit
Suresh
Nitin
Varun
Salary
35000
38500
29000
42000
Arrears
6000
6300
5000
7500
Bonus
1000
1100
1000
1240
Overtime
1800
1950
1400
1500
What is the ratio of salary of Varun to his income other than salary?Study the table and answer the question:
Income (Rs.)
No. of persons
Less than 200
12
Less than 250
26
Less than 300
34
Less than 350
40
Less than 400
50
What is the percentage of persons earning Rs. 250 or more?The following table shows the annual profit of a company (in Rs. lakh).
2014-2015
2015-2016
2016-0217
2017-2018
2018-2019
625
690
725
775
815
The period which has the maximum percentage increase in profit over the previous year is:
The table given below shows the number of persons participating in a survey from 6 different states.
States Persons S1 100 S2 200 S3 400 S4 500 S5 600 S6 800 What is the ratio of number of person participating in a survey from state S3 to the number of person participating in a survey from state S4?
