The average salary of a person for the months of January, February, March and April is Rs.8000 and that for the months February, March, April and May is Rs.8500. If his salary for the month of May is Rs.6500, find his salary for the month of January?
Options:
A . 3000
B . 2500
C . 4500
D . 5000
Answer: Option C
Sum of the salaries of the person for the months of January, February, March and April = 4 * 8000 = 32000 ----(1) Sum of the salaries of the person for the months of February, March, April and May = 4 * 8500 = 34000 ----(2) (2)-(1) i.e. May - Jan = 2000 Salary of May is Rs.6500 Salary of January = Rs.4500
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