If we compare the cumulative combined marks of students A and B over the years…
2026
If we compare the cumulative combined marks of students A and B over the years with those of students C and D, then the marks scored by A and B together are more than those scored by C and D, by approximately what percent?
- A.
77
- B.
91
- C.
15
- D.
10
Attempted by 3 students.
Show answer & explanation
Correct answer: D
First, calculate the total marks for students A and B across all years: (75+90+96+92+86) + (82+93+76+85+82) = 439 + 418 = 857.
Next, calculate the total marks for students C and D: (75+85+65+66+73) + (84+86+85+81+80) = 364 + 416 = 780.
The difference between the two totals is 857 - 780 = 77.
To find the percentage, divide the difference by the C and D total: (77 / 780) * 100 ≈ 9.87%, which is approximately 10%.