Question

Rubina decided to donate $16\%$ of her monthly salary to an NGO. On the day of donation, she changed her mind and donated Rs. $6567$ which was $75\%$ of what she had decided earlier. How much is Rubina's monthly salary?

• A. Rs. $50,000$
• B. Rs. $54,000$
• C. Rs. $54,725$
• D. Rs. $60,000$

Answer 1

Answer: (C)

Rs. $54,725$

Lets assume,

Rubina's monthly salary $=$ Rs. $x$.

Then, she decide to donate $16\%$ of Rs. $x$ to NGO.

So, she wanted to donate Rs.$\frac{16x}{100}$

But actually, she donated $75\%$ of this $16\%$ of Rs. $x$

She donated $\frac{75}{100}\times \frac{16x}{100}$

Which is equal to Rs. $6567$

$\therefore \frac{75}{100}\times \frac{16x}{100}=$ Rs. $6567$

$\Rightarrow x=$ Rs. $6567\times \frac{25}{3}$

$\Rightarrow x=$ Rs. $54725$

Hence, option C is correct.