Question

Students	1st Sem	2nd Sem	3rd Sem	4th Sem	5th Sem	6th Sem
A	74	79	73	78	72	86
B	55	51	68	53	72	69
C	40	43	50	52	60	66
D	59	59	58	57	59	57
E	66	76	71	81	89	92

 

What is the approximate absolute difference between the overall percentage of A and E for the six semesters?

1. 6%
2. 2%
3. 12%
4. 4%

Answer 1

Correct Answer - Option 2 : 2%

Calculation:

Percentage of marks scored by student A in all the 6 semesters = 74 + 79 + 73 + 78 + 72 + 86 = 462%

Percentage of marks scored by student E in all the 6 semesters = 66 + 76 + 71 + 81 + 89 + 92 = 475%

∴ The approximate absolute difference between the overall percentage of A and E for 6 semesters = (475% - 462%)/6

⇒ 13/6 = 2.1%

⇒ 2%