AMU MCA Data Interpretation Previous Year Questions (PYQs)
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Showing 4 questions
In how many of the given years was the production of fertilizers more than the average production of the given years?
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2
3
4
Solution
Total = 25 + 40 + 60 + 45 + 65 + 50 + 75 + 80 = 440
Average = 440 / 8 = 55
Above average years: 2007 (60), 2009 (65), 2011 (75), 2012 (80) → 4 years
The average production of 2006 and 2007 was exactly equal to the average production of which of the following pairs of years?
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2
3
4
Solution
Average of 2006 and 2007 = (40 + 60) / 2 = 50
Check options:
2008 and 2010 → (45 + 50) / 2 = 47.5
2009 and 2010 → (65 + 50) / 2 = 57.5
2005 and 2009 → (25 + 65) / 2 = 45
2005 and 2011 → (25 + 75) / 2 = 50
What was the percentage decline in the production of fertilizers from 2007 to 2008?
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2
3
4
Solution
Decline = 60 − 45 = 15
Percentage decline = (15 / 60) × 100 = 25%
In which year was the percentage increase in production as compared to the previous year the maximum?
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2
3
4
Solution
2006 over 2005: (40−25)/25 ×100 = 60%
2007 over 2006: (60−40)/40 ×100 = 50%
2009 over 2008: (65−45)/45 ×100 ≈ 44.44%
2012 over 2011: (80−75)/75 ×100 ≈ 6.67%
Maximum increase = 2006
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