The following table shows the highest and the average marks obtained by students in subjects over the year. The maximum mark in each subject is 100.
SUBJECTS
Botany
Economics
Physics
Chemistry
Zoology
High
Average
High
Average
High
Average
High
Average
High
Average
2001
85
62
75
52
98
65
88
72
72
46
2002
80
70
80
53
94
60
89
70
70
55
2003
82
65
77
54
85
62
95
64
64
58
2004
71
56
84
65
92
68
97
68
68
49
2005
75
52
82
66
91
64
92
75
75
58
2006
82
66
81
57
89
66
98
72
72
62
What was the approximate percentage increase in average marks in History from 2001 and 2002?
The following table shows the highest and the average marks obtained by students in subjects over the year. The maximum mark in each subject is 100.
SUBJECTS |
||||||||||
|
Botany |
Economics |
Physics |
Chemistry |
Zoology |
|||||
High |
Average |
High |
Average |
High |
Average |
High |
Average |
High |
Average |
|
2001 |
85 |
62 |
75 |
52 |
98 |
65 |
88 |
72 |
72 |
46 |
2002 |
80 |
70 |
80 |
53 |
94 |
60 |
89 |
70 |
70 |
55 |
2003 |
82 |
65 |
77 |
54 |
85 |
62 |
95 |
64 |
64 |
58 |
2004 |
71 |
56 |
84 |
65 |
92 |
68 |
97 |
68 |
68 |
49 |
2005 |
75 |
52 |
82 |
66 |
91 |
64 |
92 |
75 |
75 |
58 |
2006 |
82 |
66 |
81 |
57 |
89 |
66 |
98 |
72 |
72 |
62 |
What was the approximate percentage increase in average marks in History from 2001 and 2002?
Option 1 -
20%
Option 2 -
25%
Option 3 -
24%
Option 4 -
16%
-
1 Answer
-
Correct Option - 1
Detailed Solution:Percentage Increase
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Please find the answer below
From the 1st statement: B2 is now as old as B3 was in the past. Hence B2 is younger to B3 or B2 < B3. Also sometime in the past B1 was twice as old as B4. So B1 is elder to B4 or B1 > B4. B3 will be as old as B5 in future, hence B3 < B5. The second statement suggests: B1 > B6. B1 was as old as B7 in the past. Hence B1 > B7. B4 will be as old as B6 in future. Hence B6 > B4. B6 will be as old as B7 now in future. Hence B7 > B6. B7 was as old as B2, when B1 was as old as B7. Hence B1 = B2. Combining both the results, we get: and B5 > B3 > B2 = B1 > B7 > B6 > B4 (Note by B1 = B2, it is meant that they are of similar age group, not necessarily the same).
B5 is the eldest brother.
According to the information provided following arrangement will be obtained:
(K→ Kerala ; G → Goa ; D → Delhi)
Order according to height | Student | Belong | |||||||||
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| K | G | D |
× | × | × | × | × | × | × | √ | Arun | × | × | √ |
× | × | √ | × | × | × | × | × | Ajit | √ | × | × |
√ | × | × | × | × | × | × | × | Rohan | √ | × | × |
× | × | × | × | × | √ | × | × | Gajraj | × | √ | × |
× | √ | × | × | × | × | × | × | Ronit | × | × | √ |
× | × | × | × | √ | × | × | × | Shubham | √ | × | × |
× | × | × | × | × | × | √ | × | Sweety | × | √ | × |
× | × | × | √ | × | × | × | × | Lovely | × | √ | × |
Looking at the table given in the first question of the set, we get that Talwar lives on the sixth floor.
The data available is not enough to determine where Rubi belongs to. The given data is insufficient to answer the above question.
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