1.  Questions: Vinod's and Javed's salaries are in the proportion of 4 : 3 respectively. What is Vinod's salary ?
Statements : 

I. Javed's salary is 75% that of Vinod's salary.
II. Javed's salary is Rs 4500.
A. I alone is sufficient while II alone is not sufficient.
B. II alone is sufficient while I alone is not sufficient
C. Either I or II is sufficient
D. Neither I nor II is sufficient
E. Both I and II are sufficient

Answer: Option B

Explanation:

Statement I is merely an interpretation of the information contained in the question . However, Vinod's salary can be ascertained from II as follows : Let Vinod's and javed's salaries be 4x and 3x respectively. Then, 3x = 4500 or x = 1500. :. Vinod's salary = 4x = Rs. 6000.