Question

In a certain store, the regular price of a refrigerator is $600. How much money is saved by buying this refrigerator at 20 percent off the regular price rather than buying it on sale at 10 percent off the regular price with an additional discount of 10 percent off the sale price?

• A. $6
• B. $12
• C. $24
• D. $54
• E. $60

Answer 1

The correct option is A $6

Given

Regular price of the refrigerator $=$ 600$

$i)$ Buying the refrigerator at $20$ percent off regular price

Final Discount in this case $=$ $20\%$ (Regular price of the refrigerator)

$=$ $\frac{20}{100}$ $\times$ 600$

$=$ 120$

$ii)$ Buying it on sale at $10$ percent off regular price and an additional $10$ percent off sale price

Discount for the sale $=$ $10\%$ (Regular price of the refrigerator)

$=$ $\frac{10}{100}$ $\times$ 600$

$=$ 60$

Sale price of the refrigerator $=$ Regular price of the refrigerator $-$ Discount for sale

$=$ 600- $60$

$=$ 540$

Final Discount in this case $=$ $10\%$ (Sale price of the refrigerator)

$=$ $\frac{10}{100}$ $\times$ 540$

$=$ 54$

Money saved if we buy as $(case-i)$ $=$ (Final Discount in $(case.i)$) $-$ (Final Discount in $(case.ii)$)

$=$ 60- $54$

$=$ 6$

Therefore, Money saved is ${}^{\prime }$6'$.