1.  Which company earned the maximum percentage profit in the year 2001?
A. M
B. N
C. P
D. Q
E. R

Answer: Option D

Explanation:

The percentage profit/loss in the year 2001 for various comapanies are:

For M =[(35 - 45)x 100]% = -22.22%  
45

 i.e.,   Loss = 22.22%.
For N =[(50 - 40)x 100]% = 25%   
40

i.e.,   Profit = 25%.
For P =[(40 - 45)x 100]% = -11.11%   
45

i.e.,   Loss = 11.11%.
For Q =[(40 - 30)x 100]% = 33.33%  
30

 i.e.,   Profit = 33.33%.
For R =[(50 - 45)x 100]% = 11.11%  
45

 i.e.,   Profit = 11.11%.

Clearly, the Company Q earned the maximum profit in 2001.