Question

If a salary of a person has was increased by 15% if his salary now is rupees 9936 what was his initial salary

Answer 1

Answer:

₹. 8640

Step-by-step explanation:

let the initial salary be x

increase in salary is 15% = x ×15/100

salary at present 9936

$x + (x \times \frac{15}{100} ) = 9936 \\ x + \frac{15x}{100} = 9936 \\ \frac{100x + 15x}{100} = 9936 \\ 115x = 9936 \times 100 \\ x = \frac{9936 \times 100}{115} \\ x = 8640$

Answer 2

Answer:

₹8640

Step-by-step explanation:

$\huge\purple{\fbox{\fbox{\red{\mathcal{solution}}}}}$

let the initial salary be X

$x + 15\% \: of \: x = 9936$

$= > \frac{x}{1} \times \frac{100}{100} + \frac{15}{100} \times x = 9936$

$= > \frac{100x + 15x}{100} = 9936$

$= > \frac{115x}{100} = 9936$

$= > x = 9936 \times \frac{100}{115}$

$= > x = 9936 \times \frac{20}{23}$

$= > x = 432 \times 20$

$= > x = 8640(ans)$

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