There is a certain relation between two given number on one side of : : and one number is given on another side of : : while another number is to be found from the given alternatives, having the same relation with this number as the numbers of the given pair bear. Choose the best alternative.
9 : 79 : : 100 : ?
- 901
- 1009
- 9889
- 9998
Sol:
79=92−2,so 1002−2=9998
