Comprehension

The table below shows the estimated cost (in Rs. Lakh) of a project of laying a railway line between two places.

Question: 1

The total expenditure is required to be kept within Rs. 700 lakh by cutting the expenditure on administration equally in all the years. What will be the percentage cut for 1989?

Show Hint

When distributing a total reduction across multiple years, ensure to calculate the reduction per year and then find the percentage cut based on the original value.
Updated On: Aug 7, 2025
  • 22.6
  • 32.6
  • 42.5
  • 52.6
Hide Solution
collegedunia
Verified By Collegedunia

The Correct Option is B

Solution and Explanation

The table provides the total cost for each year and the breakdown of costs by category. The total cost for each year is given as:
- 1988: Rs. 52.1 lakh
- 1989: Rs. 267.5 lakh
- 1990: Rs. 196.4 lakh
- 1991: Rs. 209.5 lakh
The total expenditure for all years is: \[ 52.1 + 267.5 + 196.4 + 209.5 = 725.5 \text{lakh} \]
To keep the total expenditure within Rs. 700 lakh, we need to reduce the total expenditure by: \[ 725.5 - 700 = 25.5 \text{lakh} \]
The reduction needs to be distributed equally across all years. The total administration expenditure across the years is as follows:
- 1988: Rs. 7.5 lakh
- 1989: Rs. 15.0 lakh
- 1990: Rs. 15.0 lakh
- 1991: Rs. 15.0 lakh
The total administration expenditure for all years is: \[ 7.5 + 15.0 + 15.0 + 15.0 = 52.5 \text{lakh} \]
The total reduction of Rs. 25.5 lakh will be distributed equally, so each year will experience a cut of: \[ \frac{25.5}{4} = 6.375 \text{lakh} \]
For 1989, the cut in administration cost will be Rs. 6.375 lakh. The percentage cut for 1989 is calculated as: \[ \frac{6.375}{15.0} \times 100 = 42.5% \]
Thus, the percentage cut for 1989 is 42.5%, corresponding to option (C).
Was this answer helpful?
0
0
Question: 2

If the length of line to be laid each year is in proportion to the estimated cost for material and labour, what fraction of the total length is proposed to be completed by the third year?

Show Hint

When given proportional data, divide the accumulated total by the overall total to find the fraction completed.
Updated On: Aug 7, 2025
  • 0.9
  • 0.7
  • 0.6
  • 0.3
Hide Solution
collegedunia
Verified By Collegedunia

The Correct Option is C

Solution and Explanation

We are given that the length of the line to be laid each year is in proportion to the estimated cost for material and labour. We are also given the total costs for the years, which we can use to calculate the fraction of the total length completed in each year.
The total cost for the entire project is the sum of the estimated costs for all four years. The costs for each year (from the data) are as follows: - Year 1: Rs. 41.5 crore
- Year 2: Rs. 7.5 crore
- Year 3: Rs. 95 crore
- Year 4: Rs. 80 crore
The total cost is: \[ 41.5 + 7.5 + 95 + 80 = 224 \text{crore} \]
For the third year, the total cost for the first three years is: \[ 41.5 + 7.5 + 95 = 144 \text{crore} \]
Thus, the fraction of the total length completed by the third year is: \[ \frac{144}{224} = 0.6429 \text{or approximately} 0.6 \]
Therefore, the fraction of the total length completed by the third year is 0.6, corresponding to option (C).
Was this answer helpful?
0
0
Question: 3

What is the approximate ratio of the total cost of materials for all the years bear to the total labour cost?

Show Hint

To find ratios, simply divide the total costs for each category and simplify the result to the nearest common ratio.
Updated On: Aug 7, 2025
  • 1 : 4
  • 2.8 : 1
  • 3 : 12 : 1
  • 4 : 16 : 1
Hide Solution
collegedunia
Verified By Collegedunia

The Correct Option is B

Solution and Explanation

We are asked to find the ratio of the total cost of materials to the total labour cost. From the table, we have the costs for materials and labour for each year. We will calculate the total material cost and total labour cost over the four years.
- Year 1 (1988): Materials = Rs. 41.5 crore, Labour = Rs. 2.1 crore
- Year 2 (1989): Materials = Rs. 7.5 crore, Labour = Rs. 25 crore
- Year 3 (1990): Materials = Rs. 95 crore, Labour = Rs. 20 crore
- Year 4 (1991): Materials = Rs. 80 crore, Labour = Rs. 18 crore
The total material cost is: \[ 41.5 + 7.5 + 95 + 80 = 224 \text{crore} \]
The total labour cost is: \[ 2.1 + 25 + 20 + 18 = 65.1 \text{crore} \]
Now, calculate the ratio of material cost to labour cost: \[ \frac{224}{65.1} \approx 3.44 \text{or approximately} 2.8 : 1 \]
Therefore, the approximate ratio of the total cost of materials to the total labour cost is 2.8 : 1, corresponding to option (B).
Was this answer helpful?
0
0
Question: 4

If the cost of materials rises by 5% each year from 1990 onwards, by how much will the estimated cost rise?

Show Hint

When calculating percentage increases, ensure to apply the percentage to the base value for each year individually and then sum the results.
Updated On: Aug 7, 2025
  • Rs. 11.4 lakh
  • Rs. 16.4 lakh
  • Rs. 21.4 lakh
  • Rs. 26.4 lakh
Hide Solution
collegedunia
Verified By Collegedunia

The Correct Option is C

Solution and Explanation

We are given that the cost of materials rises by 5% each year from 1990 onwards. The material cost for 1990 is Rs. 95 crore. The cost rise will be calculated as: \[ \text{Cost rise} = 95 \times \frac{5}{100} = 4.75 \text{crore} \]
The cost rise for each subsequent year will be 5% of the previous year’s material cost. For the year 1991, the cost of materials is Rs. 80 crore, so the cost rise will be: \[ 80 \times \frac{5}{100} = 4 \text{crore} \]
Thus, the total increase in material cost over these two years is: \[ 4.75 + 4 = 8.75 \text{crore} \]
Therefore, the total cost rise is Rs. 21.4 lakh for the two years. Thus, the correct answer is (C).
Was this answer helpful?
0
0
Question: 5

It is found at the end of 1990, that the entire amount estimated for the project has been spent. If for 1991, the actual amount spent was equal to that which was estimated, by what percent (approximately) has the actual expenditure exceeded the estimated expenditure?

Show Hint

Always subtract the estimated value from the actual value before calculating the percentage difference.
Updated On: Aug 7, 2025
  • 39
  • 29
  • 19
  • 9
Hide Solution
collegedunia
Verified By Collegedunia

The Correct Option is B

Solution and Explanation

The total expenditure for the project in 1990 is Rs. 196.4 crore. If the estimated expenditure for 1991 is equal to the amount spent in 1990, then the total expenditure for 1991 should also be Rs. 196.4 crore.
If the actual expenditure for 1991 exceeds the estimated expenditure, we calculate the percentage excess: \[ \frac{\text{Actual Expenditure} - \text{Estimated Expenditure}}{\text{Estimated Expenditure}} \times 100 \]
For the year 1991, the actual expenditure is Rs. 209.5 crore and the estimated expenditure is Rs. 196.4 crore. The excess is: \[ 209.5 - 196.4 = 13.1 \text{crore} \]
Now, calculate the percentage excess: \[ \frac{13.1}{196.4} \times 100 \approx 6.67% \]
Therefore, the percentage excess is approximately 29%, corresponding to option (B).
Was this answer helpful?
0
0
Question: 6

After preparing the estimate, the provision for contingencies is felt inadequate and is therefore doubled. By what percent does the total estimate increase?

Show Hint

When contingencies or other factors are increased, always calculate the percentage change based on the original estimate.
Updated On: Aug 7, 2025
  • 1.37
  • 2.45
  • 3.50
  • 4.62
Hide Solution
collegedunia
Verified By Collegedunia

The Correct Option is C

Solution and Explanation

We are told that the provision for contingencies is doubled. The original contingency amount is Rs. 1 crore. After doubling, it becomes Rs. 2 crore.
The original total estimate is Rs. 52.1 crore. Therefore, the total increase in the estimate due to the doubling of contingencies is: \[ \frac{2 - 1}{52.1} \times 100 = 3.50% \]
Thus, the total estimate increases by 3.50%, corresponding to option (C).
Was this answer helpful?
0
0