If Ali's salary is 10% more than Sajjad's, by what percent is Sajjad's salary less than Ali's?
Q1. If Ali's salary is 10% more than Sajjad's, by what percent is Sajjad's salary less than Ali's?
Answer: 100/11 %
Explanation: If Ali's salary = 110 units and Sajjad's = 100, then Sajjad is less than Ali by 10/110 × 100 = 100/11 %.