Question

The local Farmer's Market usually sells potatoes for $\$0.90$ per pound. On Fridays, they sell potatoes at a $30\%$ discount. The market also sells cantaloupes for $\$3.50$ each. Which of the following represents the total cost, $c$ if a customer buys $2$ cantaloupes and $p$ pounds of potatoes on a Friday?

• A. $c=0.63p+7$
• B. $c=0.9p+7$
• C. $c=0.3p+3.5$
• D. $c=0.9p+3.5$

Answer 1

The correct option is A $c=0.63p+7$

After $30\%$ discount $SP$ of the potatoes will be,

$SP=0.90\left(1-\frac{30}{100}\right)$

$\Rightarrow SP=0.90\left(\frac{70}{100}\right)$

$\Rightarrow SP=0.63$

So, price of $1$ pound of potatoes $=$ $0.63$

Hence, price of $p$ pounds of potatoes will be $=$ $0.63p$

The cost of two cantaloupes will be,

$2\times 3.5=\$7$

Hence, total cost $c$ can be represented as,

$c=0.63p+7$

Hence, option $A$ is correct.