Question

A grocer has a sale of rs. 6435, rs. 6927, 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? A)rs. 4991

b.Rs.5991

c.Rs.6001

d.Rs.6991

Answer 1

Average sale  =  6435 + 6927 + 6855 + 7230 + 6562 + x

                                                       6

  6500            =    (34009 + x) / 6

6500 x 6        =   34009 +x

34009 + x     =    39000

 x                  =  39000- 34009

                    =   4991

So. answer is option A