Study the following table and answer the question:
Percentage of marks obtained by six students in five subjects A, B, C, D & E.
|
Subjects → Students ↓ |
A (Out of 75) |
B (Out of 80) |
C (Out of 100) |
D (Out of 50) |
E (Out of 150) |
|
Manju |
68 |
85 |
86 |
72 |
92 |
|
Amit |
64 |
65 |
80 |
96 |
80 |
|
Rekha |
88 |
75 |
65 |
74 |
90 |
|
Anuj |
80 |
55 |
68 |
66 |
84 |
|
Abhi |
72 |
65 |
72 |
54 |
74 |
|
Vikram |
60 |
70 |
73 |
84 |
86 |
The average marks of Manju, Rekha and Abhi in subject B are?
Answer & explanation
Correct answer: option 2
Total marks of Manju, Rekha and Abhi in subject B = 85% of 80 + 75% of 80 + 65% of 80
= \(\frac{17}{20}\) × 80 + \(\frac{3}{4}\) × 80 + \(\frac{13}{20}\) × 80
= 68 + 60 + 52
= 180
Average = \(\frac{180}{3}\) = 60