Question

Vihaan salary increased by 10% on promotion find his previous salary if his new salary is rupees 77000

Answer 1

$Let \: the \: previous \: salary \: be \: x \\ \\ then \\ \: \: \: \: \: \: \: \: \: \: \: \\ x + ( \frac{10 \times x}{100}) = 77000 \\ x + \frac{10x}{100} = 77000 \\ \frac{100x + 10x}{100} = 77000 \\ \frac{110x}{100} = 77000 \\ x = \frac{77000 \times 100}{110} \\ x = \frac{7700000}{110} = \frac{770000}{11} = 70000$

Answer 2

His previous salary is Rs. 70000.

Step-by-step explanation:

Since we have given that

New salary = Rs. 77000

Rate of growth in salary = 10%

So, Let the previous salary be 'x'.

According to question, it becomes,

$\dfrac{100+10}{100}\times x=77000\\\\\dfrac{110}{100}\times x=77000\\\\1.1x=77000\\\\x=\dfrac{77000}{1.1}\\\\x=70000$

Hence, his previous salary is Rs. 70000.

# learn more:

Arjun salary has increased 10% by his promotion find his previous salary if his salary is now 77000 please explain me with steps

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