Comprehension

Study the table given below carefully and answer these questions.

                                                                     WATER SUPPLY PROJECTIONS FOR HYDERABAD
   Year 
Population to be 
covered (millions)
Water requirement 
          (mid)
Actual  or Projected
     Supplies (mid)
   1991              3.3           722           545
   1994         4.35           913           680
   2001         6.23          1105         1090
   2011         8.19          1862        1906
   2021        10.15          2224        1906
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Question: 1

What is the average growth rate per year of population to be covered from 2001 to 2011?

Updated On: Oct 7, 2024
  • 3.15\(\%\)
  • 2.86\(\%\)
  • 4\(\%\)
  • 2\(\%\)
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The Correct Option is A

Solution and Explanation

First we find the Growth rate per year of population from 2001 to 2011,

Growth rate per year of population from 2001 to 2011 = \(\frac{8.19 - 6.23}{6.23} \times 100\)

≈ 31.5%

To find the average growth we divide the growth rate with the number of years difference

\(\frac{31.5}{10}\)

So, the average growth rate per year of population to be covered from 2001 to 2011 = 3.15%

The correct option is (A): 3.15\(\%\)

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Question: 2

In which year was there maximum difference between water requirements and actual or projected supplies?

Updated On: Oct 7, 2024
  • 1994
  • 2011
  • 2021
  • 1991
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The Correct Option is C

Solution and Explanation

The Difference in per capita water requirements and the actual or projected supplies for year 1991 = 722 - 545 = 177

The Difference in per capita water requirements and the actual or projected supplies for year 1994 = 913 - 680 = 233

The Difference in per capita water requirements and the actual or projected supplies for year 2011 = 1862 - 1906 = -44

The Difference in per capita water requirements and the actual or projected supplies for year 2021 = 2224 - 1906 = 318

As we can see from the above, the maximum difference between water requirements and actual or projected supplies was in year 2021.

The correct option is (C): 2021

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Question: 3

In which year the actual or projected supplies exceeded/exceeds the water requirements?

Updated On: Oct 7, 2024
  • 2011
  • 1994
  • 2021
  • None of these
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The Correct Option is A

Solution and Explanation

From the table we can see that, in year 2011 the actual or projected supplies exceeded/exceeds the water requirements

In that year = 1906 - 1862 = 44 mid water was more needed.

The correct option is (A): 2011

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Question: 4

What approximately is the maximum per capita of actual or projected supplies as litres/day ?

Updated On: Oct 7, 2024
  • 278.1
  • 187.78
  • 232.7
  • 174.9
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The Correct Option is C

Solution and Explanation

First we find out the per capita of actual or projected supplies per year given in the table

Per capita of water in actual or projected supplies for the year 1991 = \(\frac{545}{3.3}\) ≈ 165

Per capita of water in actual or projected supplies for the year 1994 = \(\frac{680}{4.35}\) ≈ 156

Per capita of water in actual or projected supplies for the year 2001 = \(\frac{1090}{6.23}\) ≈ 175

Per capita of water in actual or projected supplies for the year 2011 = \(\frac{1906}{8.19}\) ≈ 232.7

Per capita of water in actual or projected supplies for the year 2021 = \(\frac{1906}{10.15}\) ≈ 188

So, the maximum per capita of actual or projected supplies as \(\frac{litres}{day}\) was in year 2011 around 232.7

The correct option is (C): 232.7

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Question: 5

In which year, there was the least difference in per capita water requirements and the actual or projected supplies?

Updated On: Oct 7, 2024
  • 2001
  • 2011
  • 1991
  • 1994
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The Correct Option is B

Solution and Explanation

First we will find out the Difference in per capita water requirements and the actual or projected supplies for year for each year given in the table.

The Difference in per capita water requirements and the actual or projected supplies for year 1991 = 722 - 545 = 177

The Difference in per capita water requirements and the actual or projected supplies for year 1994 = 913 - 680 = 233

The Difference in per capita water requirements and the actual or projected supplies for year 2011 = 1862 - 1906 = -44

The Difference in per capita water requirements and the actual or projected supplies for year 2021 = 2224 - 1906 = 318

So, from the above we can clearly see that, the least difference in per capita water requirements and the actual or projected supplies was in year 2011.

The correct option is (B): 2011

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Question: 6

In which year, there was the lowest per capita of water in actual or projected supplies?

Updated On: Oct 7, 2024
  • 2021
  • 2001
  • 1994
  • 1991
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The Correct Option is C

Solution and Explanation

Per capita of water in actual or projected supplies in the year for the year 1991 = \(\frac{545}{3.3}\) ≈ 165

Per capita of water in actual or projected supplies in the year for the year 1994 = \(\frac{680}{4.35}\) ≈ 156

Per capita of water in actual or projected supplies in the year for the year 2001 = \(\frac{1090}{6.23}\) ≈ 175

Per capita of water in actual or projected supplies in the year for the year 2021 = \(\frac{1906}{10.15}\) ≈ 188

We can see that, the lowest per capita of water in actual or projected supplies was in year 1994.

The correct option is (C): 1994

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