Aptitude Tests 4 Me

Data Interpretation

Detailed Solution

67. Step 1 – calculate the Oct value
The information that you need is shown in the pie-chart
£37.5 million x 20% = £7.5 million
Step 2 – calculate the Nov value
The information that you need is shown in the graph
50.0 x £100,000 = £5 million
Step 3 – calculate the % difference
7.5 - 5.0 = 2.5
100% x 2.5/7.5 = 33.33% less. Or simply divide 5.0 by 7.5 to get 0.6667, which is a 33.3% reduction.
Thus the correct answer is (D), 33% less

68. The information that you need is shown in the pie-chart
Step 1 - Put these October %’s into a ratio 20%:35% = 20:35
Step 2 – simplify the ratio, looking at the available answers.
20:35 = 4:7
Thus the correct answer is (D), 4:7

69. The information that you need is shown in the graph
Step 1 – look for those holdings that are likely to have a combined value around the 35% mark:
Northern Pacific + Pacific Mixed = 30%
Pacific Rim + Pacific Mixed = 32%
Northern Pacific + Central Pacific = 33%
Pacific Rim + Northern Pacific = 38%
Central Pacific + Pacific Rim = 35%
Thus the correct answer is (B), Central Pacific and Pacific Rim

70. In this one it is not obvious which ones are going to be wrong and therefore able to be discounted, so we must calculate the value of each option:
(A) October’s Pacific Mixed holding = 4.5 million
(B) Average November value of each of the 5 holdings = 7.2 million
(C) November value of holdings in Northern Pacific = 6.14 million
(D) 70% of November’s value of holdings in Southern Pacific = 6.47 million
Thus the correct answer is (B), Average November value of each of the 5 holdings

71. The information that you need is shown in the pie-chart.
Step 1 - Add the Northern Pacific and Pacific Mixed %’s
18% + 12% = 30%
Step 2 – Express this figure as a fraction
30 / 100 = 3/10
Thus the correct answer is (D), 3/10

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