The average score of a class of boys and girls in an examina

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NICL Administrative Officer (AO) Finance Exam 2013
General Awareness
1. 01
2. 02
3. 03
4. 04
5. 05
6. 06
7. 07
8. 08
9. 09
10. 10
11. 11
12. 12
13. 13
14. 14
15. 15
16. 16
17. 17
18. 18
19. 19
20. 20
Finance
1. 21
2. 22
3. 23
4. 24
5. 25
6. 26
7. 27
8. 28
9. 29
10. 30
11. 31
12. 32
13. 33
14. 34
15. 35
16. 36
17. 37
18. 38
19. 39
20. 40
Reasoning
1. 41
2. 42
3. 43
4. 44
5. 45
6. 46
7. 47
8. 48
9. 49
10. 50
11. 51
12. 52
13. 53
14. 54
15. 55
English
1. 56
2. 57
3. 58
4. 59
5. 60
6. 61
7. 62
8. 63
9. 64
10. 65
11. 66
12. 67
13. 68
14. 69
15. 70
16. 71
17. 72
18. 73
19. 74
20. 75
Numerical
1. 76
2. 77
3. 78
4. 79
5. 80
6. 81
7. 82
8. 83
9. 84
10. 85
11. 86
12. 87
13. 88
14. 89
15. 90
16. 91
17. 92
18. 93
19. 94
20. 95

SKINS
ADS

Red
Pink
Purple
Deep Purple
Indigo
Blue
Light Blue
Cyan
Teal
Green
Light Green
Lime
Yellow
Amber
Orange
Deep Orange
Brown
Grey
Blue Grey
Black
White

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84

M: +3.00/-0.25

The average score of a class of boys and girls in an examination is A. The ratio of boys and girls in the class is 3: 1. If the average score of the boys is (A + 1), the average score of the girls is:

[NICL Administrative Officer (AO) Finance Exam 2013]

A (A-1)

B (A-3)

C (A+1)

D (A+3)