An employer reduces the number of employees in his firm. The original number and the reduced number are in the ratio 8 : 7. Thus, he saves 10% of the total wages. What is the ratio of the average wages before and after the reduction?
35 : 36
45 : 44
80 : 63
None of these
Number 8x 7x
total wages 100 90
Average wage 100/8 90/9
700 720
35 : 36