Mohan gets a salary of Rs.6435, Rs.6927, Rs.6855, Rs.7230 and Rs.6562 for 5 months. How much salary he must have in the sixth month so that he gets an average of Rs.6500?
Answer & explanation
Correct answer: option 2
Let the salary of 6th month be x
So, according to the question:
Average salary of 6 months = \(\frac{\text{6435 + 6927 + 6855 + 7230 + 6562 + x } }{6 }\)
6500 = \(\frac{\text{34,009 + x } }{6 }\)
6500 x 6 = 34,009 + x
39000 = 34009 + x
x = 4991