9. From 2018 to 2019, Mohan’s annual salary increased by 10 percent and Arun’s annual salary decreased by 5 percent. If their annual salaries were equal in 2019, then Arun’s annual salary in 2018 was what percent greater than Mohan’s annual salary in 2018 ?

1. 16·91

2. 13·34

3. 15·78

4. 10·98

Correct Answer :

15·78