Question

Aaron had 2100$ left after spending 30 % of the money he took for shopping. How much money did he take along with him?

• A. 3000$
• B. 3500$
• C. 2500$
• D. 3200$

Answer 1

The correct option is A 3000$

Let the money he took for shopping be $m$.

Money he spent $=30\%$ of $m$

$=\frac{30}{100}\times m$

$=\frac{3}{10}m$

Money left with him $=m–\frac{3m}{10}=\frac{10m-3m}{10}=\frac{7m}{10}$

But money left with him $=$ 2100$

$\therefore \frac{7m}{10}=$ 2100$

$\therefore m=$ 2100\times \dfrac{10}{7}$

$\therefore m=$ \dfrac{21000}{7}$

$\therefore m=$ 3000$

$\therefore$, the money he took for shopping is 3000$.