Comprehension

The table provided displays the estimated cost (in lakh) for the construction of a canal between two points. Based on the information in the table, answer the questions that follow.

Question: 1

If the length of the canal to be laid each year is proportional to the estimated cost for materials and labour, what fraction of the total length is intended to be completed by the third year?

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When dealing with proportionality questions based on tables, identify the relevant rows first. Sum them up for each required period and then form the ratio. Careful summation is key.

Updated On: Feb 14, 2026

0.72
0.68
0.70
0.74

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The Correct Option is B

Solution and Explanation

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Question: 2

If the cost of materials increases by 5% each year from 2022 onwards, by how much will the estimated cost (in Rupees lakh) rise?

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For percentage increase problems, you can sum the base values first and then find the percentage of the sum, if the percentage increase is the same. Here, you could calculate 5% of (232.5 + 258.0) = 5% of 490.5 = 24.525.

Updated On: Feb 14, 2026

23.53
22.53
24.53
21.53

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The Correct Option is C

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Question: 3

After preparing the estimate, the provision for contingencies is deemed inadequate and is therefore doubled. By how much percentage does the total estimate increase?

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To solve percentage change problems, you don't always need the new total. Simply find the change amount and divide it by the original total.

Updated On: Feb 14, 2026

3.47%
3.07%
2.87%
3.27%

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The Correct Option is A

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Question: 4

To ensure that the total expenditure remains within Rupees1,050 lakh, an equal reduction in management expenditure is proposed for all years. What will be the percentage reduction for the year 2021?

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Break down complex problems into smaller steps: find the total amount to be changed, determine how the change is distributed, and then calculate the percentage change for the specific item requested.

Updated On: Feb 14, 2026