Percentages, SM-Bank 032 MC

Santana is buying a guitar string.

Some of the strings are on sale.

Select the string that will be cheapest.


A.	B.	C.	D.

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$C$

Show Worked Solution

$\text{C}\text{ost of each option:}$

$\text{A. }$17$

$\text{B. }$35\ \text{less }50\text{%} = $17.50$

$\text{C. }$20\ \text{less }20\text{%} = 20-4 = $16$

$\text{D. }$24\ \text{less } 25\text{%} = 24-6 = $18$

$\therefore\ \text{Sale: take }20\text{% off is the cheapest string.}$

$\Rightarrow C$