Question
Read the passage below and answer the question that
follows: Many cities are replacing conventional streetlights with smart LED lighting systems to reduce electricity consumption and maintenance costs. These smart lights use sensors to adjust brightness based on the presence of vehicles or pedestrians. However, critics argue that the transition might not significantly reduce energy consumption if the lights remain on throughout the night in areas with consistent traffic. Which of the following statements, if true, would strengthen or weaken the argument in the passage? A. Several studies show that smart lighting systems have reduced electricity bills in cities by nearly 40%. (Weaken) B. In some cities, streetlights are dimmed or turned off entirely during low-traffic hours without affecting safety. (Weaken) C. Areas with constant vehicle or pedestrian movement tend to have lights on almost all night, minimizing energy savings. (Strengthen) Select the correct combination:Solution
The main argument:
Critics claim smart LED lighting may not lead to significant energy savings if lights remain on throughout the night in areas with constant activity. A. Smart lights reduce electricity bills by 40%.
This weakens the argument by showing that smart lights are effective in cutting costs, even if critics argue otherwise. B. Lights are dimmed or turned off during low-traffic hours without affecting safety.
This also weakens the argument. It suggests adaptive lighting works, countering the concern about lights staying on unnecessarily. C. Lights remain on almost all night in high-traffic areas.
This strengthens the argument. It supports the criticism that energy savings may not be substantial in practice.
A shopkeeper charges sales tax of x% up to Rs, 2000 and above it he charges y%. A customer pays a total tax of Rs. 320, when he purchases the goods wort...
In a Village, 20% of the total population are females and 80% of the males are literate people. If total number of literate males are 1280 and the rati...
Rakesh obtained 25% more marks than Ambuj Suresh obtained 40% less marks than Rakesh. Marks obtained by Suresh are what percent less than marks obtaine...
- In an orchard, 70% of the trees are orange trees. The number of guava trees is 30% of the orange trees, and the number of banana trees is 50% of the number...
In a job fair, 50% of the people are graduates, one fifth of them are post graduates and rest are double graduates. If three-fourth of the graduates, 60...
In a test, P got 30% of total marks and failed by 30 marks while Q got 40% of total marks which is 22 more than passing marks. Find the total marks of t...
Seven years ago, the ratio of the ages of A and B was 4: 5. Eight years hence, the ratio of the ages of A and B will be 9:10. What is the sum of their p...
The income of P is 2/5th of the income of Q and income of R is 60% more than the income of Q. Income of Q is Rs.15000 and expenditure of P is...
In 2021, Ravi's income was Rs. 18,000, out of which he spent 35% and saved the rest. In 2022, if Ravi's income increased by 15% a...
The ratio of income and expenditure of a man is 6 : 5, respectively. If the income and expenditure of the man are increased by 25% and 10% respectively...
Relevant for Exams:
