The following table gives the marks (out of 100) of five students (i.e. A, B, C, D and E) over the years 2021 to 2025.STUDENTS NAME Year A B C D E 2021 75 82 75 84 74 2022 90 93 85 86 79 2023 96 76 65 85 85 2024 92 85 66 81 82 2025 86 82 73 80 83
Analyzing Student Marks for Continuous Decrease (2023-2025)
The question asks to find the number of students whose marks consistently decreased from the year 2023 to 2025.
We need to examine the marks for each student in the years 2023, 2024, and 2025.
Student Performance Analysis (2023-2025)
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Student A:
- 2023 Marks: 96
- 2024 Marks: 92
- 2025 Marks: 86
- Trend: $96 > 92 > 86$. This shows a continuous decrease.
-
Student B:
- 2023 Marks: 76
- 2024 Marks: 85
- 2025 Marks: 82
- Trend: $76 < 85 > 82$. This is not a continuous decrease.
-
Student C:
- 2023 Marks: 65
- 2024 Marks: 66
- 2025 Marks: 73
- Trend: $65 < 66 < 73$. This shows a continuous increase, not decrease.
-
Student D:
- 2023 Marks: 85
- 2024 Marks: 81
- 2025 Marks: 80
- Trend: $85 > 81 > 80$. This shows a continuous decrease.
-
Student E:
- 2023 Marks: 52
- 2024 Marks: 82
- 2025 Marks: 83
- Trend: $52 < 82 < 83$. This shows a continuous increase, not decrease.
Conclusion
Students A and D are the only ones who experienced a continuous decrease in their marks from 2023 to 2025.
Therefore, the total number of students with a continuous decrease is 2.
Important Questions from Data Interpretation
- What is the key advantage of using Geographic Information Systems (GIS) in disaster research?
- What will be the total area of land (million ha) of which 12% area is prone to flood and river erosion ?
The total runs scored by four cricketers P, Q, R, and S in years $2009$ and $2010$ are given in the following table:
Player $2009$ $2010$ P $802$ $1008$ Q $765$ $912$ R $429$ $619$ S $501$ $701$
The player with the lowest percentage increase in total runs isStudy the given table and answer the following question:
Annual consumption (in hundred tonnes) of tea in five states (A, B, C, D and E) across 6 years (2014 to 2019):State Year A B C D E 2014 112 130 136 105 117 2015 122 138 150 140 120 2016 124 134 142 144 132 2017 132 154 198 149 133 2018 135 148 187 151 145 2019 153 136 198 150 187 The total consumption of tea in state C in 2015 to 2017 is by what percentage more than the total consumption of tea in states A, B and D in 2015?
The table below shows the number of toys of 6 different colours sold from a shop during a given period. The table also shows the percentage of toys of each colour which are cars.
Colour Total toys Percentage of cars C1 500 12 C2 600 15 C3 400 12.5 C4 550 10 C5 650 20 C6 450 10 What is the total number of car toys of C2 and C3 taken together?
