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Dragnet Numerical Reasoning Questions and Answers


Fig 2.1


31)

If the same number of each model was sold last month and total sales were £220,000, how many of each model were sold?

Step 1 – Calculate the total sales value of one of each type of laptop
400 + 350 + 380 + 420 + 650 = 2200

Step 2 – Divide total monthly sales by this number
220,000/2200 = 100

Thus the correct answer is (C) 100
32)

For which laptop, or laptops, is the difference between the manufacturing cost and the design cost less than 20% of the manufacturing cost?

Calculate the % difference between the manufacturing cost and the design cost (relative to manufacturing cost) for each laptop as shown below;

Faze: (120 - 60)/120 = 50%
Brete: (195 - 130)/195 = 33%
Adele: (140 - 90)/140 = 36%
Stunn: (145 - 115)/145 = 21%
Adelphi: (165 - 60)/165 = 64%

So the correct answer is (E) None of these

Fig 2.0


33)

In 2009 what was the absolute difference between the Parent Company’s full-time employees and part-time employees (if Number of employees = Full-time employees + part-time employees)?

Step 1 – calculate the total employees in 2009
1,614 + 962 + 1,412 + 1,583 + 1,029 = 6,600

Step 2 – calculate the number of full-time employees
Number of employees = Full-time employees + part-time employees
6,600 = 100% = x% + 5%
Full-time employees = 95%

Step 3 – calculate the difference in the % of part-time employees to full-time employees
95% - 5% = 90%

Step 4 – calculate the difference
6,600 x 90% = 5,940

So the correct answer is (E) 5,940
34)

1 in 15 of the parent company’s part-time employees were managers in 2005, and 1 in 13 part-time employees were managers in 2007. What was the difference in the number of part-time managers in 2005 compared to 2007?

  2005 2007
  1,538 1,573
  1,107 1,060
  1,340 1,393
  1,505 1,528
  1,010 946
Step 1 – Total employees for each year = 6,500 6,500
Step 2 – Part-time employees = 6,500 x 12% = 780 6,500 x 8% = 520
Step 3 – Managers = 780 / 15 = 52 520 / 13 = 40
Step 3 – Difference = 52 – 40 = 12

So the correct answer is (B) 12 more
35)

In 2008 subsidiary company 4 comprised 2 regions with double the number of employees in one region compared to the other. If the ratio of male:female employees in the smaller region was 1:1.15, what was this region’s number of male employees?

Step 1 – calculate the number of employees in the smaller region
1,548/3= 516 employees

Step 2 – apply the 1:1.15 Male:Female ratio
516/2.15 = 240 male employees

So the correct answer is (A) 240



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