The following table shows the percentage of marks obtained by five students - V, W, X, Y and Z - in five subjects.
|
Subjects → |
Maths |
Physics |
Chemistry |
Botany |
Hindi |
|
Maximum Marks |
300 |
300 |
200 |
100 |
100 |
|
Students↓ |
|||||
|
V |
60 |
80 |
90 |
100 |
95 |
|
W |
90 |
70 |
80 |
70 |
40 |
|
X |
70 |
90 |
95 |
80 |
75 |
|
Y |
80 |
60 |
70 |
95 |
80 |
What are the average marks, in percentage, obtained by X?
Answer & explanation
Correct answer: option 3
Sum of Marks of X = \(\frac{7}{10}\) × 300 + \(\frac{9}{10}\) × 300 + \(\frac{19}{20}\) × 200 + \(\frac{4}{5}\) × 100 + \(\frac{3}{4}\) × 100
= 210 + 270 + 190 + 80 + 75
= 825
Total marks = 300 + 300 + 200 + 100 + 100 = 1000
Average marks = \(\frac{825}{1000}\) = 82.5%