Question

4. The salary of a person was increased by 15%. If his salary now is 9,936, what was his initial salary?​

Answer 1

Answer:

If his salary is now is Rs 9936, what was his initial salary? Rs. 8640 was his initial salary.

Step-by-step explanation:

New salary after increase = Rs. 9936

Let x be the Initial salary

Initial salary + 15% of initial salary = New Salary

x+15%(x)=9936

x+(15/100)(x)=9936

x+(3/20)(x)=9936

x+3x/20=9936

(20x+3x)/20=9936

23x=9936*20

23x=198720

x=198720/23

x=8640

Rs. 8640 was his initial salary.

Answer 2

Answer:

Let his initial salary be x.

According to the problem:

x+(15/100)x = 9936

=> x+15x/100=9936

=>(100x+15x)/100=9936

=>115x=9936x100=993600

=>x=993600/115=8640

Answer: The person's initial salary was 8640 Rs.

TO CHECK:

15/100x9936=1296

9936-1296=8640 Rs.

Step-by-step explanation:

hope you understand!!