. A grocer has a sale of Rs 6435
Rs. 6927 , Rs. 6855, Rs. 7230 and Rs. 6562 for 5 consecutive months. How much sales must be had in the sixth month so that he gets an average sale of Rs. 6500 ?
A: Rs. 3714
B: Rs. 6622
C: Rs. 4991
D: Rs. 5478
Let the sale of sixth month be x.
Then the sum of six months sale =Rs (6435+6927+6855+7230+6562+x)
We know average = Sum of values / Number of values
Since average of six months sale is Rs6500
We have, 6500=34009+x /6
Option C is the correct choice.