A grocer has a sale of Rs. 2435, Rs. 2920, Rs. 2855, Rs. 3230 and Rs. 2560 for 5 consecutive months. How much sale must he have in the sixth month so that he gets an average sale of Rs. 2500?
Choose the correct choice from the following:
A) 5000
B) 4000
C) 1000
D) 6000
E) 8000
Total sale for 5 months = Rs. (2435 + 2920 + 2855 + 3230 + 2560) = Rs. 14000.   Required sale = Rs. [ (2500 x 6) - 14000 ]   = Rs. (15000 - 14000)   = Rs. 1000   Answer: Option 1000
<result>C</result>
A grocer has a sale of Rs. 2435, Rs. 2920, Rs. 2855, Rs. 3230 and Rs. 2560 for 5 consecutive months. How much sale must he have in the sixth month so that he gets an average sale of Rs. 2500?