Question
Salary of a person decreases by 10% every year and his bonus increases by 24% every year. If his salary and bonuses at the end of 2020 were ₹8000 and ₹2500 respectively, find the difference between his total earning in March, 2020 and March 2022.
Options :
₹ 165, increase
₹ 176, increase
₹ 180, decrease
₹ 176, decrease
Answer :
₹ 176, decrease
Solution :
Salary is decreased by 10%
Bonus is increased by 24%
Salary in 2020 = 8000
Bonus in 2020 = 2500
Total monthly income = 10,500
For 2021,
Salary = 8000 – 10%
= 8000 – 800 = 7200
Bonus = 2500 + 24%
= 2500 + 600 = 3100
For 2022,
Salary = 7200-10%
= 7200 – 720 = 6480
Bonus = 3100 + 24%
= 3100 + 744 = 3844
Total monthly income = 10,324
Difference in total monthly income of march 2020 and march 2022 = 10500 – 10324 = 176 (decrease)
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