1.  Questions: What is the total monthly salary of Vasu ?
Statements:

I.   Vasu's basic salary is Rs. 100 more than Rajan's salary who also serves in Vasu's company.
II.  Other allowance drawn by Rajan besides his basic salary are Rs 2000 per month which is Rs 50 less than Vasu's salary.
III. Rajan's basic salary is rs 1550 per month.

A. Only II
B. Only II and III
C. only I and II
D. only I and III
E. All I, II and III

Answer: Option E

Explanation:

From III, we have : Rajan's basic salary = Rs. 1550.

From I, we have : Vasu's basic salary = Rs.(1550 + 100) = Rs. 1650.

From II, we have : Rajan's other allowances = Rs. 2050.

and Vasu's other allowances = Rs. 2050.

so, Vasu's monthly salary = Rs. ( 1650 + 2050) = Rs. 3700.