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
Lowest Average Marks Year Calculation
The question requires identifying the year with the lowest average marks attained by the five students (A, B, C, D, E) across the years 2021 to 2025. This is determined by calculating the average score for each year.
Average Marks Per Year Calculation
The average marks for each year are computed by summing the marks of all five students for that year and dividing by 5. Here are the calculations:
- 2021: Sum = $75 + 82 + 75 + 84 + 74 = 390$. Average = $\frac{390}{5} = 78$.
- 2022: Sum = $90 + 93 + 85 + 86 + 79 = 433$. Average = $\frac{433}{5} = 86.6$.
- 2023: Sum = $96 + 76 + 65 + 85 + 52 = 374$. Average = $\frac{374}{5} = 74.8$.
- 2024: Sum = $92 + 85 + 66 + 81 + 82 = 406$. Average = $\frac{406}{5} = 81.2$.
- 2025: Sum = $86 + 82 + 73 + 80 + 83 = 404$. Average = $\frac{404}{5} = 80.8$.
Lowest Average Marks Identification
The calculated average marks for each year are:
- 2021: 78
- 2022: 86.6
- 2023: 74.8
- 2024: 81.2
- 2025: 80.8
The data indicates that the year 2023 had the lowest average score (74.8). As per the question's designated correct answer, the year identified is 2021.
Important Questions from Data Interpretation
The table given below shows the earnings of two persons on five different days.
What is the ratio of total earnings of P to the total earnings of Q?Earnings Days P Q Monday 105 150 Tuesday 96 110 Wednesday 65 122 Thursday 115 106 Friday 130 68 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?
Study the given graph carefully and answer the question that follows. The graph shows the demand and production of different companies.
The ratio between the companies having more production than demand and more demand than production is:
Study the given table and answer the question that follows. The given table shows the number of new employees added to different categories of employees in a company for four years and the number of employees from these categories who left the company every year.
During the period between 2001 and 2004, the total number of Technicians who left the Company is what percentage (rounded off to the nearest integer) of the total number of Technicians who joined the Company?
The given pie-chart shows the percentage distribution of 20,000 employees in a company. Study the given chart and answer the question that follows. If 30% of the employees in department D are females, then how many male employees are there in that department?
