A grocer has sales of Rs 6437, Rs 6925, Rs 6855, Rs 7230 and Rs 6562 for 5 consecutive months. How much sale must he have in the sixth month so that he gets an average sale of Rs 6500?
4991
Total sale for 5 months = Rs (6437 + 6925 + 6855 + 7230 + 6562) = Rs. 34009
Required sale = Rs[ (6500 x 6) - 34009 ] = Rs(39000 - 34009) = Rs 4991