Question

The salary of a person was increased by 15%.if his salary now is rs 9936 what was his initial salary.

Answer 1

Answer:

Answer:Rs.8640

Explanation:

Salary after increase=Rs.9936

Let the Initial salary be x

Initial salary+15% of Initial salary=New salary

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

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

x+3x/20=9936

20x+3x/20=9936

23x/20=9936

23x=9936×20

23x=198720

x=198720/23

x=8640

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His Initial salary=Rs.8640

Answer 2

• Let Initial salary be M.

15% of the salary was increased.

Now.. the new salary is Rs. 9936

• A.T.Q.

→ M + $(\dfrac{15}{100})$(M) = 9936

→ M + $(\dfrac{3M}{20})$ = 9936

→ M + $\dfrac{3M}{20}$ = 9936

→ 20M + $\dfrac{3M}{20}$ = 9936

→ $\dfrac{23M}{20}$ = 9936

→ 23M = 9936 × 20

→ 23x = 198720

→ M = $\dfrac{198720}{23}$

→ M = 8640

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Initial salary = Rs. 8640

__________ [ ANSWER ]

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✡ VERIFICATION :

From above calculations we have M = 8640

Put value of M in this equation: M + $(\dfrac{15}{100})$(M) = 9936

=> M + $(\dfrac{3M}{20})$ = 9936

=> $\dfrac{20M\:+\:3M}{20}$ = 9936

=> $\dfrac{23M}{20}$ = 9936

=> $\dfrac{19870}{20}$ = 9936

=> 9936 = 9936

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