Question

The cost of 250 g of roasted pistachios is $\$4$. The cost of 1 kg of roasted pistachios is .

• A. $\$16$
• B. $\$20$
• C. undetermined

Answer 1

The correct option is A $\$16$

Cost of 250 g of roasted pistachios $=\$4$
$\therefore$ Cost of 1 g of roasted pistachios $=\frac{\$4}{250}$

We know that 1 kg = 1,000 g

Hence, cost of 1,000 g of roasted pistachios $=1000\times \frac{4}{250}=4\times 250\times \frac{4}{250}=4\times 4=\$16$